25255220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 54663168

約数和(自身を除く): 29407948

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 127, 163, 244, 254, 305, 326, 508, 610, 635, 652, 815, 1220, 1270, 1630, 2540, 3260, 7747, 9943, 15494, 19886, 20701, 30988, 38735, 39772, 41402, 49715, 77470, 82804, 99430, 103505, 154940, 198860, 207010, 414020, 1262761, 2525522, 5051044, 6313805, 12627610, 25255220]

約数ペア:

[(1, 25255220), (2, 12627610), (4, 6313805), (5, 5051044), (10, 2525522), (20, 1262761), (61, 414020), (122, 207010), (127, 198860), (163, 154940), (244, 103505), (254, 99430), (305, 82804), (326, 77470), (508, 49715), (610, 41402), (635, 39772), (652, 38735), (815, 30988), (1220, 20701), (1270, 19886), (1630, 15494), (2540, 9943), (3260, 7747)]