215041925

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 338424768

約数和(自身を除く): 123382843

約数列:

[1, 5, 7, 17, 25, 35, 41, 43, 85, 119, 175, 205, 215, 287, 301, 425, 595, 697, 731, 1025, 1075, 1435, 1505, 1681, 1763, 2975, 3485, 3655, 4879, 5117, 7175, 7525, 8405, 8815, 11767, 12341, 17425, 18275, 24395, 25585, 28577, 29971, 42025, 44075, 58835, 61705, 72283, 121975, 127925, 142885, 149855, 200039, 209797, 294175, 308525, 361415, 505981, 714425, 749275, 1000195, 1048985, 1228811, 1807075, 2529905, 5000975, 5244925, 6144055, 8601677, 12649525, 30720275, 43008385, 215041925]

約数ペア:

[(1, 215041925), (5, 43008385), (7, 30720275), (17, 12649525), (25, 8601677), (35, 6144055), (41, 5244925), (43, 5000975), (85, 2529905), (119, 1807075), (175, 1228811), (205, 1048985), (215, 1000195), (287, 749275), (301, 714425), (425, 505981), (595, 361415), (697, 308525), (731, 294175), (1025, 209797), (1075, 200039), (1435, 149855), (1505, 142885), (1681, 127925), (1763, 121975), (2975, 72283), (3485, 61705), (3655, 58835), (4879, 44075), (5117, 42025), (7175, 29971), (7525, 28577), (8405, 25585), (8815, 24395), (11767, 18275), (12341, 17425)]