1639776740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:757

約数の個数: 96

約数和(自身を含む): 3991513344

約数和(自身を除く): 2351736604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 181, 326, 362, 397, 652, 724, 794, 815, 905, 1141, 1267, 1588, 1630, 1810, 1985, 2282, 2534, 2779, 3260, 3620, 3970, 4564, 5068, 5558, 5705, 6335, 7940, 11116, 11410, 12670, 13895, 22820, 25340, 27790, 29503, 55580, 59006, 64711, 71857, 118012, 129422, 143714, 147515, 206521, 258844, 287428, 295030, 323555, 359285, 413042, 452977, 502999, 590060, 647110, 718570, 826084, 905954, 1005998, 1032605, 1294220, 1437140, 1811908, 2011996, 2065210, 2264885, 2514995, 4130420, 4529770, 5029990, 9059540, 10059980, 11712691, 23425382, 46850764, 58563455, 81988837, 117126910, 163977674, 234253820, 327955348, 409944185, 819888370, 1639776740]

約数ペア:

[(1, 1639776740), (2, 819888370), (4, 409944185), (5, 327955348), (7, 234253820), (10, 163977674), (14, 117126910), (20, 81988837), (28, 58563455), (35, 46850764), (70, 23425382), (140, 11712691), (163, 10059980), (181, 9059540), (326, 5029990), (362, 4529770), (397, 4130420), (652, 2514995), (724, 2264885), (794, 2065210), (815, 2011996), (905, 1811908), (1141, 1437140), (1267, 1294220), (1588, 1032605), (1630, 1005998), (1810, 905954), (1985, 826084), (2282, 718570), (2534, 647110), (2779, 590060), (3260, 502999), (3620, 452977), (3970, 413042), (4564, 359285), (5068, 323555), (5558, 295030), (5705, 287428), (6335, 258844), (7940, 206521), (11116, 147515), (11410, 143714), (12670, 129422), (13895, 118012), (22820, 71857), (25340, 64711), (27790, 59006), (29503, 55580)]