400838416

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 868515840

約数和(自身を除く): 467677424

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 79, 88, 127, 158, 176, 227, 254, 316, 454, 508, 632, 869, 908, 1016, 1264, 1397, 1738, 1816, 2032, 2497, 2794, 3476, 3632, 4994, 5588, 6952, 9988, 10033, 11176, 13904, 17933, 19976, 20066, 22352, 28829, 35866, 39952, 40132, 57658, 71732, 80264, 110363, 115316, 143464, 160528, 197263, 220726, 230632, 286928, 317119, 394526, 441452, 461264, 634238, 789052, 882904, 1268476, 1578104, 1765808, 2277491, 2536952, 3156208, 4554982, 5073904, 9109964, 18219928, 25052401, 36439856, 50104802, 100209604, 200419208, 400838416]

約数ペア:

[(1, 400838416), (2, 200419208), (4, 100209604), (8, 50104802), (11, 36439856), (16, 25052401), (22, 18219928), (44, 9109964), (79, 5073904), (88, 4554982), (127, 3156208), (158, 2536952), (176, 2277491), (227, 1765808), (254, 1578104), (316, 1268476), (454, 882904), (508, 789052), (632, 634238), (869, 461264), (908, 441452), (1016, 394526), (1264, 317119), (1397, 286928), (1738, 230632), (1816, 220726), (2032, 197263), (2497, 160528), (2794, 143464), (3476, 115316), (3632, 110363), (4994, 80264), (5588, 71732), (6952, 57658), (9988, 40132), (10033, 39952), (11176, 35866), (13904, 28829), (17933, 22352), (19976, 20066)]