18490914400

素因数分解:

$2^5\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{20509}}^1$

素因数の和:20566

約数の個数: 216

約数和(自身を含む): 54796649040

約数和(自身を除く): 36305734640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 49, 50, 56, 70, 80, 92, 98, 100, 112, 115, 140, 160, 161, 175, 184, 196, 200, 224, 230, 245, 280, 322, 350, 368, 392, 400, 460, 490, 560, 575, 644, 700, 736, 784, 800, 805, 920, 980, 1120, 1127, 1150, 1225, 1288, 1400, 1568, 1610, 1840, 1960, 2254, 2300, 2450, 2576, 2800, 3220, 3680, 3920, 4025, 4508, 4600, 4900, 5152, 5600, 5635, 6440, 7840, 8050, 9016, 9200, 9800, 11270, 12880, 16100, 18032, 18400, 19600, 20509, 22540, 25760, 28175, 32200, 36064, 39200, 41018, 45080, 56350, 64400, 82036, 90160, 102545, 112700, 128800, 143563, 164072, 180320, 205090, 225400, 287126, 328144, 410180, 450800, 471707, 512725, 574252, 656288, 717815, 820360, 901600, 943414, 1004941, 1025450, 1148504, 1435630, 1640720, 1886828, 2009882, 2050900, 2297008, 2358535, 2871260, 3281440, 3301949, 3589075, 3773656, 4019764, 4101800, 4594016, 4717070, 5024705, 5742520, 6603898, 7178150, 7547312, 8039528, 8203600, 9434140, 10049410, 11485040, 11792675, 13207796, 14356300, 15094624, 16079056, 16407200, 16509745, 18868280, 20098820, 22970080, 23113643, 23585350, 25123525, 26415592, 28712600, 32158112, 33019490, 37736560, 40197640, 46227286, 47170700, 50247050, 52831184, 57425200, 66038980, 75473120, 80395280, 82548725, 92454572, 94341400, 100494100, 105662368, 114850400, 115568215, 132077960, 160790560, 165097450, 184909144, 188682800, 200988200, 231136430, 264155920, 330194900, 369818288, 377365600, 401976400, 462272860, 528311840, 577841075, 660389800, 739636576, 803952800, 924545720, 1155682150, 1320779600, 1849091440, 2311364300, 2641559200, 3698182880, 4622728600, 9245457200, 18490914400]

約数ペア:

[(1, 18490914400), (2, 9245457200), (4, 4622728600), (5, 3698182880), (7, 2641559200), (8, 2311364300), (10, 1849091440), (14, 1320779600), (16, 1155682150), (20, 924545720), (23, 803952800), (25, 739636576), (28, 660389800), (32, 577841075), (35, 528311840), (40, 462272860), (46, 401976400), (49, 377365600), (50, 369818288), (56, 330194900), (70, 264155920), (80, 231136430), (92, 200988200), (98, 188682800), (100, 184909144), (112, 165097450), (115, 160790560), (140, 132077960), (160, 115568215), (161, 114850400), (175, 105662368), (184, 100494100), (196, 94341400), (200, 92454572), (224, 82548725), (230, 80395280), (245, 75473120), (280, 66038980), (322, 57425200), (350, 52831184), (368, 50247050), (392, 47170700), (400, 46227286), (460, 40197640), (490, 37736560), (560, 33019490), (575, 32158112), (644, 28712600), (700, 26415592), (736, 25123525), (784, 23585350), (800, 23113643), (805, 22970080), (920, 20098820), (980, 18868280), (1120, 16509745), (1127, 16407200), (1150, 16079056), (1225, 15094624), (1288, 14356300), (1400, 13207796), (1568, 11792675), (1610, 11485040), (1840, 10049410), (1960, 9434140), (2254, 8203600), (2300, 8039528), (2450, 7547312), (2576, 7178150), (2800, 6603898), (3220, 5742520), (3680, 5024705), (3920, 4717070), (4025, 4594016), (4508, 4101800), (4600, 4019764), (4900, 3773656), (5152, 3589075), (5600, 3301949), (5635, 3281440), (6440, 2871260), (7840, 2358535), (8050, 2297008), (9016, 2050900), (9200, 2009882), (9800, 1886828), (11270, 1640720), (12880, 1435630), (16100, 1148504), (18032, 1025450), (18400, 1004941), (19600, 943414), (20509, 901600), (22540, 820360), (25760, 717815), (28175, 656288), (32200, 574252), (36064, 512725), (39200, 471707), (41018, 450800), (45080, 410180), (56350, 328144), (64400, 287126), (82036, 225400), (90160, 205090), (102545, 180320), (112700, 164072), (128800, 143563)]