550959320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1\times {\mathrm{647}}^1$

素因数の和:1068

約数の個数: 64

約数和(自身を含む): 1265544000

約数和(自身を除く): 714584680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 349, 488, 610, 647, 698, 1220, 1294, 1396, 1745, 2440, 2588, 2792, 3235, 3490, 5176, 6470, 6980, 12940, 13960, 21289, 25880, 39467, 42578, 78934, 85156, 106445, 157868, 170312, 197335, 212890, 225803, 315736, 394670, 425780, 451606, 789340, 851560, 903212, 1129015, 1578680, 1806424, 2258030, 4516060, 9032120, 13773983, 27547966, 55095932, 68869915, 110191864, 137739830, 275479660, 550959320]

約数ペア:

[(1, 550959320), (2, 275479660), (4, 137739830), (5, 110191864), (8, 68869915), (10, 55095932), (20, 27547966), (40, 13773983), (61, 9032120), (122, 4516060), (244, 2258030), (305, 1806424), (349, 1578680), (488, 1129015), (610, 903212), (647, 851560), (698, 789340), (1220, 451606), (1294, 425780), (1396, 394670), (1745, 315736), (2440, 225803), (2588, 212890), (2792, 197335), (3235, 170312), (3490, 157868), (5176, 106445), (6470, 85156), (6980, 78934), (12940, 42578), (13960, 39467), (21289, 25880)]