15405780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19751}}^1$

素因数の和:19776

約数の個数: 48

約数和(自身を含む): 46456704

約数和(自身を除く): 31050924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 19751, 39502, 59253, 79004, 98755, 118506, 197510, 237012, 256763, 296265, 395020, 513526, 592530, 770289, 1027052, 1185060, 1283815, 1540578, 2567630, 3081156, 3851445, 5135260, 7702890, 15405780]

約数ペア:

[(1, 15405780), (2, 7702890), (3, 5135260), (4, 3851445), (5, 3081156), (6, 2567630), (10, 1540578), (12, 1283815), (13, 1185060), (15, 1027052), (20, 770289), (26, 592530), (30, 513526), (39, 395020), (52, 296265), (60, 256763), (65, 237012), (78, 197510), (130, 118506), (156, 98755), (195, 79004), (260, 59253), (390, 39502), (780, 19751)]