639945790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{14879}}^1$

素因数の和:14937

約数の個数: 64

約数和(自身を含む): 1388482560

約数和(自身を除く): 748536770

約数列:

[1, 2, 5, 10, 11, 17, 22, 23, 34, 46, 55, 85, 110, 115, 170, 187, 230, 253, 374, 391, 506, 782, 935, 1265, 1870, 1955, 2530, 3910, 4301, 8602, 14879, 21505, 29758, 43010, 74395, 148790, 163669, 252943, 327338, 342217, 505886, 684434, 818345, 1264715, 1636690, 1711085, 2529430, 2782373, 3422170, 3764387, 5564746, 5817689, 7528774, 11635378, 13911865, 18821935, 27823730, 29088445, 37643870, 58176890, 63994579, 127989158, 319972895, 639945790]

約数ペア:

[(1, 639945790), (2, 319972895), (5, 127989158), (10, 63994579), (11, 58176890), (17, 37643870), (22, 29088445), (23, 27823730), (34, 18821935), (46, 13911865), (55, 11635378), (85, 7528774), (110, 5817689), (115, 5564746), (170, 3764387), (187, 3422170), (230, 2782373), (253, 2529430), (374, 1711085), (391, 1636690), (506, 1264715), (782, 818345), (935, 684434), (1265, 505886), (1870, 342217), (1955, 327338), (2530, 252943), (3910, 163669), (4301, 148790), (8602, 74395), (14879, 43010), (21505, 29758)]