20844900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:115

約数の個数: 216

約数和(自身を含む): 73120320

約数和(自身を除く): 52275420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 25, 30, 36, 38, 45, 46, 50, 53, 57, 60, 69, 75, 76, 90, 92, 95, 100, 106, 114, 115, 138, 150, 159, 171, 180, 190, 207, 212, 225, 228, 230, 265, 276, 285, 300, 318, 342, 345, 380, 414, 437, 450, 460, 475, 477, 530, 570, 575, 636, 684, 690, 795, 828, 855, 874, 900, 950, 954, 1007, 1035, 1060, 1140, 1150, 1219, 1311, 1325, 1380, 1425, 1590, 1710, 1725, 1748, 1900, 1908, 2014, 2070, 2185, 2300, 2385, 2438, 2622, 2650, 2850, 3021, 3180, 3420, 3450, 3657, 3933, 3975, 4028, 4140, 4275, 4370, 4770, 4876, 5035, 5175, 5244, 5300, 5700, 6042, 6095, 6555, 6900, 7314, 7866, 7950, 8550, 8740, 9063, 9540, 10070, 10350, 10925, 10971, 11925, 12084, 12190, 13110, 14628, 15105, 15732, 15900, 17100, 18126, 18285, 19665, 20140, 20700, 21850, 21942, 23161, 23850, 24380, 25175, 26220, 30210, 30475, 32775, 36252, 36570, 39330, 43700, 43884, 45315, 46322, 47700, 50350, 54855, 60420, 60950, 65550, 69483, 73140, 75525, 78660, 90630, 91425, 92644, 98325, 100700, 109710, 115805, 121900, 131100, 138966, 151050, 181260, 182850, 196650, 208449, 219420, 226575, 231610, 274275, 277932, 302100, 347415, 365700, 393300, 416898, 453150, 463220, 548550, 579025, 694830, 833796, 906300, 1042245, 1097100, 1158050, 1389660, 1737075, 2084490, 2316100, 3474150, 4168980, 5211225, 6948300, 10422450, 20844900]

約数ペア:

[(1, 20844900), (2, 10422450), (3, 6948300), (4, 5211225), (5, 4168980), (6, 3474150), (9, 2316100), (10, 2084490), (12, 1737075), (15, 1389660), (18, 1158050), (19, 1097100), (20, 1042245), (23, 906300), (25, 833796), (30, 694830), (36, 579025), (38, 548550), (45, 463220), (46, 453150), (50, 416898), (53, 393300), (57, 365700), (60, 347415), (69, 302100), (75, 277932), (76, 274275), (90, 231610), (92, 226575), (95, 219420), (100, 208449), (106, 196650), (114, 182850), (115, 181260), (138, 151050), (150, 138966), (159, 131100), (171, 121900), (180, 115805), (190, 109710), (207, 100700), (212, 98325), (225, 92644), (228, 91425), (230, 90630), (265, 78660), (276, 75525), (285, 73140), (300, 69483), (318, 65550), (342, 60950), (345, 60420), (380, 54855), (414, 50350), (437, 47700), (450, 46322), (460, 45315), (475, 43884), (477, 43700), (530, 39330), (570, 36570), (575, 36252), (636, 32775), (684, 30475), (690, 30210), (795, 26220), (828, 25175), (855, 24380), (874, 23850), (900, 23161), (950, 21942), (954, 21850), (1007, 20700), (1035, 20140), (1060, 19665), (1140, 18285), (1150, 18126), (1219, 17100), (1311, 15900), (1325, 15732), (1380, 15105), (1425, 14628), (1590, 13110), (1710, 12190), (1725, 12084), (1748, 11925), (1900, 10971), (1908, 10925), (2014, 10350), (2070, 10070), (2185, 9540), (2300, 9063), (2385, 8740), (2438, 8550), (2622, 7950), (2650, 7866), (2850, 7314), (3021, 6900), (3180, 6555), (3420, 6095), (3450, 6042), (3657, 5700), (3933, 5300), (3975, 5244), (4028, 5175), (4140, 5035), (4275, 4876), (4370, 4770)]