28745300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 67980024

約数和(自身を除く): 39234724

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 37, 50, 68, 74, 85, 100, 148, 170, 185, 340, 370, 425, 457, 629, 740, 850, 914, 925, 1258, 1700, 1828, 1850, 2285, 2516, 3145, 3700, 4570, 6290, 7769, 9140, 11425, 12580, 15538, 15725, 16909, 22850, 31076, 31450, 33818, 38845, 45700, 62900, 67636, 77690, 84545, 155380, 169090, 194225, 287453, 338180, 388450, 422725, 574906, 776900, 845450, 1149812, 1437265, 1690900, 2874530, 5749060, 7186325, 14372650, 28745300]

約数ペア:

[(1, 28745300), (2, 14372650), (4, 7186325), (5, 5749060), (10, 2874530), (17, 1690900), (20, 1437265), (25, 1149812), (34, 845450), (37, 776900), (50, 574906), (68, 422725), (74, 388450), (85, 338180), (100, 287453), (148, 194225), (170, 169090), (185, 155380), (340, 84545), (370, 77690), (425, 67636), (457, 62900), (629, 45700), (740, 38845), (850, 33818), (914, 31450), (925, 31076), (1258, 22850), (1700, 16909), (1828, 15725), (1850, 15538), (2285, 12580), (2516, 11425), (3145, 9140), (3700, 7769), (4570, 6290)]