2785209980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{46591}}^1$

素因数の和:46675

約数の個数: 72

約数和(自身を含む): 6915557376

約数和(自身を除く): 4130347396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 854, 980, 1220, 1708, 2135, 2989, 4270, 5978, 8540, 11956, 14945, 29890, 46591, 59780, 93182, 186364, 232955, 326137, 465910, 652274, 931820, 1304548, 1630685, 2282959, 2842051, 3261370, 4565918, 5684102, 6522740, 9131836, 11368204, 11414795, 14210255, 19894357, 22829590, 28420510, 39788714, 45659180, 56841020, 79577428, 99471785, 139260499, 198943570, 278520998, 397887140, 557041996, 696302495, 1392604990, 2785209980]

約数ペア:

[(1, 2785209980), (2, 1392604990), (4, 696302495), (5, 557041996), (7, 397887140), (10, 278520998), (14, 198943570), (20, 139260499), (28, 99471785), (35, 79577428), (49, 56841020), (61, 45659180), (70, 39788714), (98, 28420510), (122, 22829590), (140, 19894357), (196, 14210255), (244, 11414795), (245, 11368204), (305, 9131836), (427, 6522740), (490, 5684102), (610, 4565918), (854, 3261370), (980, 2842051), (1220, 2282959), (1708, 1630685), (2135, 1304548), (2989, 931820), (4270, 652274), (5978, 465910), (8540, 326137), (11956, 232955), (14945, 186364), (29890, 93182), (46591, 59780)]