20048040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1016

約数の個数: 128

約数和(自身を含む): 70416000

約数和(自身を除く): 50367960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 977, 1026, 1080, 1140, 1368, 1710, 1954, 2052, 2280, 2565, 2931, 3420, 3908, 4104, 4885, 5130, 5862, 6840, 7816, 8793, 9770, 10260, 11724, 14655, 17586, 18563, 19540, 20520, 23448, 26379, 29310, 35172, 37126, 39080, 43965, 52758, 55689, 58620, 70344, 74252, 87930, 92815, 105516, 111378, 117240, 131895, 148504, 167067, 175860, 185630, 211032, 222756, 263790, 278445, 334134, 351720, 371260, 445512, 501201, 527580, 556890, 668268, 742520, 835335, 1002402, 1055160, 1113780, 1336536, 1670670, 2004804, 2227560, 2506005, 3341340, 4009608, 5012010, 6682680, 10024020, 20048040]

約数ペア:

[(1, 20048040), (2, 10024020), (3, 6682680), (4, 5012010), (5, 4009608), (6, 3341340), (8, 2506005), (9, 2227560), (10, 2004804), (12, 1670670), (15, 1336536), (18, 1113780), (19, 1055160), (20, 1002402), (24, 835335), (27, 742520), (30, 668268), (36, 556890), (38, 527580), (40, 501201), (45, 445512), (54, 371260), (57, 351720), (60, 334134), (72, 278445), (76, 263790), (90, 222756), (95, 211032), (108, 185630), (114, 175860), (120, 167067), (135, 148504), (152, 131895), (171, 117240), (180, 111378), (190, 105516), (216, 92815), (228, 87930), (270, 74252), (285, 70344), (342, 58620), (360, 55689), (380, 52758), (456, 43965), (513, 39080), (540, 37126), (570, 35172), (684, 29310), (760, 26379), (855, 23448), (977, 20520), (1026, 19540), (1080, 18563), (1140, 17586), (1368, 14655), (1710, 11724), (1954, 10260), (2052, 9770), (2280, 8793), (2565, 7816), (2931, 6840), (3420, 5862), (3908, 5130), (4104, 4885)]