1977437140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:438

約数の個数: 144

約数和(自身を含む): 4957533504

約数和(自身を除く): 2980096364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 131, 140, 146, 196, 211, 245, 262, 292, 365, 422, 490, 511, 524, 655, 730, 844, 917, 980, 1022, 1055, 1310, 1460, 1477, 1834, 2044, 2110, 2555, 2620, 2954, 3577, 3668, 4220, 4585, 5110, 5908, 6419, 7154, 7385, 9170, 9563, 10220, 10339, 12838, 14308, 14770, 15403, 17885, 18340, 19126, 20678, 25676, 27641, 29540, 30806, 32095, 35770, 38252, 41356, 47815, 51695, 55282, 61612, 64190, 66941, 71540, 77015, 95630, 103390, 107821, 110564, 128380, 133882, 138205, 154030, 191260, 193487, 206780, 215642, 267764, 276410, 308060, 334705, 386974, 431284, 468587, 539105, 552820, 669410, 754747, 773948, 937174, 967435, 1078210, 1338820, 1354409, 1509494, 1874348, 1934870, 2017793, 2156420, 2342935, 2708818, 3018988, 3773735, 3869740, 4035586, 4685870, 5417636, 6772045, 7547470, 8071172, 9371740, 10088965, 13544090, 14124551, 15094940, 20177930, 27088180, 28249102, 40355860, 56498204, 70622755, 98871857, 141245510, 197743714, 282491020, 395487428, 494359285, 988718570, 1977437140]

約数ペア:

[(1, 1977437140), (2, 988718570), (4, 494359285), (5, 395487428), (7, 282491020), (10, 197743714), (14, 141245510), (20, 98871857), (28, 70622755), (35, 56498204), (49, 40355860), (70, 28249102), (73, 27088180), (98, 20177930), (131, 15094940), (140, 14124551), (146, 13544090), (196, 10088965), (211, 9371740), (245, 8071172), (262, 7547470), (292, 6772045), (365, 5417636), (422, 4685870), (490, 4035586), (511, 3869740), (524, 3773735), (655, 3018988), (730, 2708818), (844, 2342935), (917, 2156420), (980, 2017793), (1022, 1934870), (1055, 1874348), (1310, 1509494), (1460, 1354409), (1477, 1338820), (1834, 1078210), (2044, 967435), (2110, 937174), (2555, 773948), (2620, 754747), (2954, 669410), (3577, 552820), (3668, 539105), (4220, 468587), (4585, 431284), (5110, 386974), (5908, 334705), (6419, 308060), (7154, 276410), (7385, 267764), (9170, 215642), (9563, 206780), (10220, 193487), (10339, 191260), (12838, 154030), (14308, 138205), (14770, 133882), (15403, 128380), (17885, 110564), (18340, 107821), (19126, 103390), (20678, 95630), (25676, 77015), (27641, 71540), (29540, 66941), (30806, 64190), (32095, 61612), (35770, 55282), (38252, 51695), (41356, 47815)]