20805570

素因数分解:

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

素因数の和:101

約数の個数: 96

約数和(自身を含む): 59529600

約数和(自身を除く): 38724030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 23, 30, 38, 45, 46, 57, 69, 90, 95, 114, 115, 138, 171, 190, 207, 230, 285, 342, 345, 414, 437, 529, 570, 690, 855, 874, 1035, 1058, 1311, 1587, 1710, 2070, 2185, 2622, 2645, 3174, 3933, 4370, 4761, 5290, 6555, 7866, 7935, 9522, 10051, 12167, 13110, 15870, 19665, 20102, 23805, 24334, 30153, 36501, 39330, 47610, 50255, 60306, 60835, 73002, 90459, 100510, 109503, 121670, 150765, 180918, 182505, 219006, 231173, 301530, 365010, 452295, 462346, 547515, 693519, 904590, 1095030, 1155865, 1387038, 2080557, 2311730, 3467595, 4161114, 6935190, 10402785, 20805570]

約数ペア:

[(1, 20805570), (2, 10402785), (3, 6935190), (5, 4161114), (6, 3467595), (9, 2311730), (10, 2080557), (15, 1387038), (18, 1155865), (19, 1095030), (23, 904590), (30, 693519), (38, 547515), (45, 462346), (46, 452295), (57, 365010), (69, 301530), (90, 231173), (95, 219006), (114, 182505), (115, 180918), (138, 150765), (171, 121670), (190, 109503), (207, 100510), (230, 90459), (285, 73002), (342, 60835), (345, 60306), (414, 50255), (437, 47610), (529, 39330), (570, 36501), (690, 30153), (855, 24334), (874, 23805), (1035, 20102), (1058, 19665), (1311, 15870), (1587, 13110), (1710, 12167), (2070, 10051), (2185, 9522), (2622, 7935), (2645, 7866), (3174, 6555), (3933, 5290), (4370, 4761)]