178381260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2423}}^1$

素因数の和:2847

約数の個数: 72

約数和(自身を含む): 542636640

約数和(自身を除く): 364255380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 409, 818, 1227, 1636, 2045, 2423, 2454, 3681, 4090, 4846, 4908, 6135, 7269, 7362, 8180, 9692, 12115, 12270, 14538, 14724, 18405, 21807, 24230, 24540, 29076, 36345, 36810, 43614, 48460, 72690, 73620, 87228, 109035, 145380, 218070, 436140, 991007, 1982014, 2973021, 3964028, 4955035, 5946042, 8919063, 9910070, 11892084, 14865105, 17838126, 19820140, 29730210, 35676252, 44595315, 59460420, 89190630, 178381260]

約数ペア:

[(1, 178381260), (2, 89190630), (3, 59460420), (4, 44595315), (5, 35676252), (6, 29730210), (9, 19820140), (10, 17838126), (12, 14865105), (15, 11892084), (18, 9910070), (20, 8919063), (30, 5946042), (36, 4955035), (45, 3964028), (60, 2973021), (90, 1982014), (180, 991007), (409, 436140), (818, 218070), (1227, 145380), (1636, 109035), (2045, 87228), (2423, 73620), (2454, 72690), (3681, 48460), (4090, 43614), (4846, 36810), (4908, 36345), (6135, 29076), (7269, 24540), (7362, 24230), (8180, 21807), (9692, 18405), (12115, 14724), (12270, 14538)]