28979764

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 61272288

約数和(自身を除く): 32292524

約数列:

[1, 2, 4, 11, 17, 22, 34, 43, 44, 53, 68, 86, 106, 172, 187, 212, 289, 374, 473, 578, 583, 731, 748, 901, 946, 1156, 1166, 1462, 1802, 1892, 2279, 2332, 2924, 3179, 3604, 4558, 6358, 8041, 9116, 9911, 12427, 12716, 15317, 16082, 19822, 24854, 25069, 30634, 32164, 38743, 39644, 49708, 50138, 61268, 77486, 100276, 136697, 154972, 168487, 273394, 336974, 426173, 546788, 658631, 673948, 852346, 1317262, 1704692, 2634524, 7244941, 14489882, 28979764]

約数ペア:

[(1, 28979764), (2, 14489882), (4, 7244941), (11, 2634524), (17, 1704692), (22, 1317262), (34, 852346), (43, 673948), (44, 658631), (53, 546788), (68, 426173), (86, 336974), (106, 273394), (172, 168487), (187, 154972), (212, 136697), (289, 100276), (374, 77486), (473, 61268), (578, 50138), (583, 49708), (731, 39644), (748, 38743), (901, 32164), (946, 30634), (1156, 25069), (1166, 24854), (1462, 19822), (1802, 16082), (1892, 15317), (2279, 12716), (2332, 12427), (2924, 9911), (3179, 9116), (3604, 8041), (4558, 6358)]