20072696875

素因数分解:

$5^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{701}}^1$

素因数の和:768

約数の個数: 144

約数和(自身を含む): 33759651744

約数和(自身を除く): 13686954869

約数列:

[1, 5, 7, 11, 17, 25, 35, 49, 55, 77, 85, 119, 125, 175, 187, 245, 275, 385, 425, 539, 595, 625, 701, 833, 875, 935, 1225, 1309, 1375, 1925, 2125, 2695, 2975, 3125, 3505, 4165, 4375, 4675, 4907, 6125, 6545, 6875, 7711, 9163, 9625, 10625, 11917, 13475, 14875, 17525, 20825, 21875, 23375, 24535, 30625, 32725, 34349, 34375, 38555, 45815, 48125, 53125, 53977, 59585, 67375, 74375, 83419, 87625, 104125, 116875, 122675, 131087, 153125, 163625, 171745, 192775, 229075, 240625, 269885, 297925, 336875, 371875, 377839, 417095, 438125, 520625, 583933, 584375, 613375, 655435, 818125, 858725, 917609, 963875, 1145375, 1349425, 1489625, 1684375, 1889195, 2085475, 2190625, 2603125, 2919665, 3066875, 3277175, 4090625, 4293625, 4588045, 4819375, 5726875, 6423263, 6747125, 7448125, 9445975, 10427375, 14598325, 15334375, 16385875, 21468125, 22940225, 24096875, 28634375, 32116315, 33735625, 37240625, 47229875, 52136875, 72991625, 81929375, 107340625, 114701125, 160581575, 168678125, 236149375, 260684375, 364958125, 409646875, 573505625, 802907875, 1180746875, 1824790625, 2867528125, 4014539375, 20072696875]

約数ペア:

[(1, 20072696875), (5, 4014539375), (7, 2867528125), (11, 1824790625), (17, 1180746875), (25, 802907875), (35, 573505625), (49, 409646875), (55, 364958125), (77, 260684375), (85, 236149375), (119, 168678125), (125, 160581575), (175, 114701125), (187, 107340625), (245, 81929375), (275, 72991625), (385, 52136875), (425, 47229875), (539, 37240625), (595, 33735625), (625, 32116315), (701, 28634375), (833, 24096875), (875, 22940225), (935, 21468125), (1225, 16385875), (1309, 15334375), (1375, 14598325), (1925, 10427375), (2125, 9445975), (2695, 7448125), (2975, 6747125), (3125, 6423263), (3505, 5726875), (4165, 4819375), (4375, 4588045), (4675, 4293625), (4907, 4090625), (6125, 3277175), (6545, 3066875), (6875, 2919665), (7711, 2603125), (9163, 2190625), (9625, 2085475), (10625, 1889195), (11917, 1684375), (13475, 1489625), (14875, 1349425), (17525, 1145375), (20825, 963875), (21875, 917609), (23375, 858725), (24535, 818125), (30625, 655435), (32725, 613375), (34349, 584375), (34375, 583933), (38555, 520625), (45815, 438125), (48125, 417095), (53125, 377839), (53977, 371875), (59585, 336875), (67375, 297925), (74375, 269885), (83419, 240625), (87625, 229075), (104125, 192775), (116875, 171745), (122675, 163625), (131087, 153125)]