18480020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 45849888

約数和(自身を除く): 27369868

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 37, 52, 65, 68, 74, 85, 113, 130, 148, 170, 185, 221, 226, 260, 340, 370, 442, 452, 481, 565, 629, 740, 884, 962, 1105, 1130, 1258, 1469, 1921, 1924, 2210, 2260, 2405, 2516, 2938, 3145, 3842, 4181, 4420, 4810, 5876, 6290, 7345, 7684, 8177, 8362, 9605, 9620, 12580, 14690, 16354, 16724, 19210, 20905, 24973, 29380, 32708, 38420, 40885, 41810, 49946, 54353, 71077, 81770, 83620, 99892, 108706, 124865, 142154, 163540, 217412, 249730, 271765, 284308, 355385, 499460, 543530, 710770, 924001, 1087060, 1421540, 1848002, 3696004, 4620005, 9240010, 18480020]

約数ペア:

[(1, 18480020), (2, 9240010), (4, 4620005), (5, 3696004), (10, 1848002), (13, 1421540), (17, 1087060), (20, 924001), (26, 710770), (34, 543530), (37, 499460), (52, 355385), (65, 284308), (68, 271765), (74, 249730), (85, 217412), (113, 163540), (130, 142154), (148, 124865), (170, 108706), (185, 99892), (221, 83620), (226, 81770), (260, 71077), (340, 54353), (370, 49946), (442, 41810), (452, 40885), (481, 38420), (565, 32708), (629, 29380), (740, 24973), (884, 20905), (962, 19210), (1105, 16724), (1130, 16354), (1258, 14690), (1469, 12580), (1921, 9620), (1924, 9605), (2210, 8362), (2260, 8177), (2405, 7684), (2516, 7345), (2938, 6290), (3145, 5876), (3842, 4810), (4181, 4420)]