18253240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1579}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 43655400

約数和(自身を除く): 25402160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 1579, 2312, 2890, 3158, 5780, 6316, 7895, 11560, 12632, 15790, 26843, 31580, 53686, 63160, 107372, 134215, 214744, 268430, 456331, 536860, 912662, 1073720, 1825324, 2281655, 3650648, 4563310, 9126620, 18253240]

約数ペア:

[(1, 18253240), (2, 9126620), (4, 4563310), (5, 3650648), (8, 2281655), (10, 1825324), (17, 1073720), (20, 912662), (34, 536860), (40, 456331), (68, 268430), (85, 214744), (136, 134215), (170, 107372), (289, 63160), (340, 53686), (578, 31580), (680, 26843), (1156, 15790), (1445, 12632), (1579, 11560), (2312, 7895), (2890, 6316), (3158, 5780)]