1821310.00000000

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:519

約数の個数: 128

約数和(自身を含む): 241678080

約数和(自身を除く): 155222200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 41, 56, 68, 70, 82, 85, 119, 136, 140, 164, 170, 205, 238, 280, 287, 328, 340, 410, 443, 476, 574, 595, 680, 697, 820, 886, 952, 1148, 1190, 1394, 1435, 1640, 1772, 2215, 2296, 2380, 2788, 2870, 3101, 3485, 3544, 4430, 4760, 4879, 5576, 5740, 6202, 6970, 7531, 8860, 9758, 11480, 12404, 13940, 15062, 15505, 17720, 18163, 19516, 24395, 24808, 27880, 30124, 31010, 36326, 37655, 39032, 48790, 52717, 60248, 62020, 72652, 75310, 90815, 97580, 105434, 124040, 127141, 145304, 150620, 181630, 195160, 210868, 254282, 263585, 301240, 308771, 363260, 421736, 508564, 527170, 617542, 635705, 726520, 1017128, 1054340, 1235084, 1271410, 1543855, 2108680, 2161397, 2470168, 2542820, 3087710, 4322794, 5085640, 6175420, 8645588, 10806985, 12350840, 17291176, 21613970, 43227940, 86455880]

約数ペア:

[(1, 86455880), (2, 43227940), (4, 21613970), (5, 17291176), (7, 12350840), (8, 10806985), (10, 8645588), (14, 6175420), (17, 5085640), (20, 4322794), (28, 3087710), (34, 2542820), (35, 2470168), (40, 2161397), (41, 2108680), (56, 1543855), (68, 1271410), (70, 1235084), (82, 1054340), (85, 1017128), (119, 726520), (136, 635705), (140, 617542), (164, 527170), (170, 508564), (205, 421736), (238, 363260), (280, 308771), (287, 301240), (328, 263585), (340, 254282), (410, 210868), (443, 195160), (476, 181630), (574, 150620), (595, 145304), (680, 127141), (697, 124040), (820, 105434), (886, 97580), (952, 90815), (1148, 75310), (1190, 72652), (1394, 62020), (1435, 60248), (1640, 52717), (1772, 48790), (2215, 39032), (2296, 37655), (2380, 36326), (2788, 31010), (2870, 30124), (3101, 27880), (3485, 24808), (3544, 24395), (4430, 19516), (4760, 18163), (4879, 17720), (5576, 15505), (5740, 15062), (6202, 13940), (6970, 12404), (7531, 11480), (8860, 9758)]