31303980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2851}}^1$

素因数の和:2927

約数の個数: 72

約数和(自身を含む): 96545904

約数和(自身を除く): 65241924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 2851, 3660, 5490, 5702, 8553, 10980, 11404, 14255, 17106, 25659, 28510, 34212, 42765, 51318, 57020, 85530, 102636, 128295, 171060, 173911, 256590, 347822, 513180, 521733, 695644, 869555, 1043466, 1565199, 1739110, 2086932, 2608665, 3130398, 3478220, 5217330, 6260796, 7825995, 10434660, 15651990, 31303980]

約数ペア:

[(1, 31303980), (2, 15651990), (3, 10434660), (4, 7825995), (5, 6260796), (6, 5217330), (9, 3478220), (10, 3130398), (12, 2608665), (15, 2086932), (18, 1739110), (20, 1565199), (30, 1043466), (36, 869555), (45, 695644), (60, 521733), (61, 513180), (90, 347822), (122, 256590), (180, 173911), (183, 171060), (244, 128295), (305, 102636), (366, 85530), (549, 57020), (610, 51318), (732, 42765), (915, 34212), (1098, 28510), (1220, 25659), (1830, 17106), (2196, 14255), (2745, 11404), (2851, 10980), (3660, 8553), (5490, 5702)]