257362980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{32251}}^1$

素因数の和:32289

約数の個数: 96

約数和(自身を含む): 866933760

約数和(自身を除く): 609570780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 32251, 64502, 96753, 129004, 161255, 193506, 225757, 322510, 387012, 451514, 483765, 612769, 645020, 677271, 903028, 967530, 1128785, 1225538, 1354542, 1838307, 1935060, 2257570, 2451076, 2709084, 3063845, 3386355, 3676614, 4289383, 4515140, 6127690, 6772710, 7353228, 8578766, 9191535, 12255380, 12868149, 13545420, 17157532, 18383070, 21446915, 25736298, 36766140, 42893830, 51472596, 64340745, 85787660, 128681490, 257362980]

約数ペア:

[(1, 257362980), (2, 128681490), (3, 85787660), (4, 64340745), (5, 51472596), (6, 42893830), (7, 36766140), (10, 25736298), (12, 21446915), (14, 18383070), (15, 17157532), (19, 13545420), (20, 12868149), (21, 12255380), (28, 9191535), (30, 8578766), (35, 7353228), (38, 6772710), (42, 6127690), (57, 4515140), (60, 4289383), (70, 3676614), (76, 3386355), (84, 3063845), (95, 2709084), (105, 2451076), (114, 2257570), (133, 1935060), (140, 1838307), (190, 1354542), (210, 1225538), (228, 1128785), (266, 967530), (285, 903028), (380, 677271), (399, 645020), (420, 612769), (532, 483765), (570, 451514), (665, 387012), (798, 322510), (1140, 225757), (1330, 193506), (1596, 161255), (1995, 129004), (2660, 96753), (3990, 64502), (7980, 32251)]