255352890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21121}}^1$

素因数の和:21175

約数の個数: 64

約数和(自身を含む): 681311232

約数和(自身を除く): 425958342

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 2015, 2418, 4030, 6045, 12090, 21121, 42242, 63363, 105605, 126726, 211210, 274573, 316815, 549146, 633630, 654751, 823719, 1309502, 1372865, 1647438, 1964253, 2745730, 3273755, 3928506, 4118595, 6547510, 8237190, 8511763, 9821265, 17023526, 19642530, 25535289, 42558815, 51070578, 85117630, 127676445, 255352890]

約数ペア:

[(1, 255352890), (2, 127676445), (3, 85117630), (5, 51070578), (6, 42558815), (10, 25535289), (13, 19642530), (15, 17023526), (26, 9821265), (30, 8511763), (31, 8237190), (39, 6547510), (62, 4118595), (65, 3928506), (78, 3273755), (93, 2745730), (130, 1964253), (155, 1647438), (186, 1372865), (195, 1309502), (310, 823719), (390, 654751), (403, 633630), (465, 549146), (806, 316815), (930, 274573), (1209, 211210), (2015, 126726), (2418, 105605), (4030, 63363), (6045, 42242), (12090, 21121)]