142857920

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14401}}^1$

素因数の和:14449

約数の個数: 56

約数和(自身を含む): 351178368

約数和(自身を除く): 208320448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 14401, 28802, 57604, 72005, 115208, 144010, 230416, 288020, 446431, 460832, 576040, 892862, 921664, 1152080, 1785724, 2232155, 2304160, 3571448, 4464310, 4608320, 7142896, 8928620, 14285792, 17857240, 28571584, 35714480, 71428960, 142857920]

約数ペア:

[(1, 142857920), (2, 71428960), (4, 35714480), (5, 28571584), (8, 17857240), (10, 14285792), (16, 8928620), (20, 7142896), (31, 4608320), (32, 4464310), (40, 3571448), (62, 2304160), (64, 2232155), (80, 1785724), (124, 1152080), (155, 921664), (160, 892862), (248, 576040), (310, 460832), (320, 446431), (496, 288020), (620, 230416), (992, 144010), (1240, 115208), (1984, 72005), (2480, 57604), (4960, 28802), (9920, 14401)]