20130720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2467}}^1$

素因数の和:2502

約数の個数: 96

約数和(自身を含む): 67169088

約数和(自身を除く): 47038368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 160, 170, 204, 240, 255, 272, 340, 408, 480, 510, 544, 680, 816, 1020, 1360, 1632, 2040, 2467, 2720, 4080, 4934, 7401, 8160, 9868, 12335, 14802, 19736, 24670, 29604, 37005, 39472, 41939, 49340, 59208, 74010, 78944, 83878, 98680, 118416, 125817, 148020, 167756, 197360, 209695, 236832, 251634, 296040, 335512, 394720, 419390, 503268, 592080, 629085, 671024, 838780, 1006536, 1184160, 1258170, 1342048, 1677560, 2013072, 2516340, 3355120, 4026144, 5032680, 6710240, 10065360, 20130720]

約数ペア:

[(1, 20130720), (2, 10065360), (3, 6710240), (4, 5032680), (5, 4026144), (6, 3355120), (8, 2516340), (10, 2013072), (12, 1677560), (15, 1342048), (16, 1258170), (17, 1184160), (20, 1006536), (24, 838780), (30, 671024), (32, 629085), (34, 592080), (40, 503268), (48, 419390), (51, 394720), (60, 335512), (68, 296040), (80, 251634), (85, 236832), (96, 209695), (102, 197360), (120, 167756), (136, 148020), (160, 125817), (170, 118416), (204, 98680), (240, 83878), (255, 78944), (272, 74010), (340, 59208), (408, 49340), (480, 41939), (510, 39472), (544, 37005), (680, 29604), (816, 24670), (1020, 19736), (1360, 14802), (1632, 12335), (2040, 9868), (2467, 8160), (2720, 7401), (4080, 4934)]