205519460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:142

約数の個数: 108

約数和(自身を含む): 486542196

約数和(自身を除く): 281022736

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 37, 62, 68, 74, 85, 124, 148, 155, 170, 185, 289, 310, 340, 370, 527, 578, 620, 629, 740, 961, 1054, 1147, 1156, 1258, 1445, 1922, 2108, 2294, 2516, 2635, 2890, 3145, 3844, 4588, 4805, 5270, 5735, 5780, 6290, 8959, 9610, 10540, 10693, 11470, 12580, 16337, 17918, 19220, 19499, 21386, 22940, 32674, 35557, 35836, 38998, 42772, 44795, 53465, 65348, 71114, 77996, 81685, 89590, 97495, 106930, 142228, 163370, 177785, 179180, 194990, 213860, 277729, 326740, 331483, 355570, 389980, 555458, 604469, 662966, 711140, 1110916, 1208938, 1325932, 1388645, 1657415, 2417876, 2777290, 3022345, 3314830, 5554580, 6044690, 6629660, 10275973, 12089380, 20551946, 41103892, 51379865, 102759730, 205519460]

約数ペア:

[(1, 205519460), (2, 102759730), (4, 51379865), (5, 41103892), (10, 20551946), (17, 12089380), (20, 10275973), (31, 6629660), (34, 6044690), (37, 5554580), (62, 3314830), (68, 3022345), (74, 2777290), (85, 2417876), (124, 1657415), (148, 1388645), (155, 1325932), (170, 1208938), (185, 1110916), (289, 711140), (310, 662966), (340, 604469), (370, 555458), (527, 389980), (578, 355570), (620, 331483), (629, 326740), (740, 277729), (961, 213860), (1054, 194990), (1147, 179180), (1156, 177785), (1258, 163370), (1445, 142228), (1922, 106930), (2108, 97495), (2294, 89590), (2516, 81685), (2635, 77996), (2890, 71114), (3145, 65348), (3844, 53465), (4588, 44795), (4805, 42772), (5270, 38998), (5735, 35836), (5780, 35557), (6290, 32674), (8959, 22940), (9610, 21386), (10540, 19499), (10693, 19220), (11470, 17918), (12580, 16337)]