20841311920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{863}}^1\times {\mathrm{2111}}^1$

素因数の和:3011

約数の個数: 160

約数和(自身を含む): 57020350464

約数和(自身を除く): 36179038544

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 863, 880, 1040, 1144, 1430, 1726, 2111, 2288, 2860, 3452, 4222, 4315, 5720, 6904, 8444, 8630, 9493, 10555, 11219, 11440, 13808, 16888, 17260, 18986, 21110, 22438, 23221, 27443, 33776, 34520, 37972, 42220, 44876, 46442, 47465, 54886, 56095, 69040, 75944, 84440, 89752, 92884, 94930, 109772, 112190, 116105, 123409, 137215, 151888, 168880, 179504, 185768, 189860, 219544, 224380, 232210, 246818, 274430, 301873, 371536, 379720, 439088, 448760, 464420, 493636, 548860, 603746, 617045, 759440, 897520, 928840, 987272, 1097720, 1207492, 1234090, 1509365, 1821793, 1857680, 1974544, 2195440, 2414984, 2468180, 3018730, 3643586, 4829968, 4936360, 6037460, 7287172, 9108965, 9872720, 12074920, 14574344, 18217930, 20039723, 23683309, 24149840, 29148688, 36435860, 40079446, 47366618, 72871720, 80158892, 94733236, 100198615, 118416545, 145743440, 160317784, 189466472, 200397230, 236833090, 260516399, 320635568, 378932944, 400794460, 473666180, 521032798, 801588920, 947332360, 1042065596, 1302581995, 1603177840, 1894664720, 2084131192, 2605163990, 4168262384, 5210327980, 10420655960, 20841311920]

約数ペア:

[(1, 20841311920), (2, 10420655960), (4, 5210327980), (5, 4168262384), (8, 2605163990), (10, 2084131192), (11, 1894664720), (13, 1603177840), (16, 1302581995), (20, 1042065596), (22, 947332360), (26, 801588920), (40, 521032798), (44, 473666180), (52, 400794460), (55, 378932944), (65, 320635568), (80, 260516399), (88, 236833090), (104, 200397230), (110, 189466472), (130, 160317784), (143, 145743440), (176, 118416545), (208, 100198615), (220, 94733236), (260, 80158892), (286, 72871720), (440, 47366618), (520, 40079446), (572, 36435860), (715, 29148688), (863, 24149840), (880, 23683309), (1040, 20039723), (1144, 18217930), (1430, 14574344), (1726, 12074920), (2111, 9872720), (2288, 9108965), (2860, 7287172), (3452, 6037460), (4222, 4936360), (4315, 4829968), (5720, 3643586), (6904, 3018730), (8444, 2468180), (8630, 2414984), (9493, 2195440), (10555, 1974544), (11219, 1857680), (11440, 1821793), (13808, 1509365), (16888, 1234090), (17260, 1207492), (18986, 1097720), (21110, 987272), (22438, 928840), (23221, 897520), (27443, 759440), (33776, 617045), (34520, 603746), (37972, 548860), (42220, 493636), (44876, 464420), (46442, 448760), (47465, 439088), (54886, 379720), (56095, 371536), (69040, 301873), (75944, 274430), (84440, 246818), (89752, 232210), (92884, 224380), (94930, 219544), (109772, 189860), (112190, 185768), (116105, 179504), (123409, 168880), (137215, 151888)]