25107449620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{67891}}^1$

素因数の和:67993

約数の個数: 72

約数和(自身を含む): 58956869664

約数和(自身を除く): 33849420044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1681, 1804, 2255, 3362, 4510, 6724, 8405, 9020, 16810, 18491, 33620, 36982, 67891, 73964, 92455, 135782, 184910, 271564, 339455, 369820, 678910, 746801, 1357820, 1493602, 2783531, 2987204, 3734005, 5567062, 7468010, 11134124, 13917655, 14936020, 27835310, 30618841, 55670620, 61237682, 114124771, 122475364, 153094205, 228249542, 306188410, 456499084, 570623855, 612376820, 1141247710, 1255372481, 2282495420, 2510744962, 5021489924, 6276862405, 12553724810, 25107449620]

約数ペア:

[(1, 25107449620), (2, 12553724810), (4, 6276862405), (5, 5021489924), (10, 2510744962), (11, 2282495420), (20, 1255372481), (22, 1141247710), (41, 612376820), (44, 570623855), (55, 456499084), (82, 306188410), (110, 228249542), (164, 153094205), (205, 122475364), (220, 114124771), (410, 61237682), (451, 55670620), (820, 30618841), (902, 27835310), (1681, 14936020), (1804, 13917655), (2255, 11134124), (3362, 7468010), (4510, 5567062), (6724, 3734005), (8405, 2987204), (9020, 2783531), (16810, 1493602), (18491, 1357820), (33620, 746801), (36982, 678910), (67891, 369820), (73964, 339455), (92455, 271564), (135782, 184910)]