28961920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^2$

素因数の和:150

約数の個数: 96

約数和(自身を含む): 75848220

約数和(自身を除く): 46886300

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 59, 64, 65, 80, 104, 118, 128, 130, 160, 208, 236, 260, 295, 320, 416, 472, 520, 590, 640, 767, 832, 944, 1040, 1180, 1534, 1664, 1888, 2080, 2360, 3068, 3481, 3776, 3835, 4160, 4720, 6136, 6962, 7552, 7670, 8320, 9440, 12272, 13924, 15340, 17405, 18880, 24544, 27848, 30680, 34810, 37760, 45253, 49088, 55696, 61360, 69620, 90506, 98176, 111392, 122720, 139240, 181012, 222784, 226265, 245440, 278480, 362024, 445568, 452530, 490880, 556960, 724048, 905060, 1113920, 1448096, 1810120, 2227840, 2896192, 3620240, 5792384, 7240480, 14480960, 28961920]

約数ペア:

[(1, 28961920), (2, 14480960), (4, 7240480), (5, 5792384), (8, 3620240), (10, 2896192), (13, 2227840), (16, 1810120), (20, 1448096), (26, 1113920), (32, 905060), (40, 724048), (52, 556960), (59, 490880), (64, 452530), (65, 445568), (80, 362024), (104, 278480), (118, 245440), (128, 226265), (130, 222784), (160, 181012), (208, 139240), (236, 122720), (260, 111392), (295, 98176), (320, 90506), (416, 69620), (472, 61360), (520, 55696), (590, 49088), (640, 45253), (767, 37760), (832, 34810), (944, 30680), (1040, 27848), (1180, 24544), (1534, 18880), (1664, 17405), (1888, 15340), (2080, 13924), (2360, 12272), (3068, 9440), (3481, 8320), (3776, 7670), (3835, 7552), (4160, 6962), (4720, 6136)]