261570390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3319}}^1$

素因数の和:3437

約数の個数: 64

約数和(自身を含む): 654013440

約数和(自身を除く): 392443050

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 71, 74, 111, 142, 185, 213, 222, 355, 370, 426, 555, 710, 1065, 1110, 2130, 2627, 3319, 5254, 6638, 7881, 9957, 13135, 15762, 16595, 19914, 26270, 33190, 39405, 49785, 78810, 99570, 122803, 235649, 245606, 368409, 471298, 614015, 706947, 736818, 1178245, 1228030, 1413894, 1842045, 2356490, 3534735, 3684090, 7069470, 8719013, 17438026, 26157039, 43595065, 52314078, 87190130, 130785195, 261570390]

約数ペア:

[(1, 261570390), (2, 130785195), (3, 87190130), (5, 52314078), (6, 43595065), (10, 26157039), (15, 17438026), (30, 8719013), (37, 7069470), (71, 3684090), (74, 3534735), (111, 2356490), (142, 1842045), (185, 1413894), (213, 1228030), (222, 1178245), (355, 736818), (370, 706947), (426, 614015), (555, 471298), (710, 368409), (1065, 245606), (1110, 235649), (2130, 122803), (2627, 99570), (3319, 78810), (5254, 49785), (6638, 39405), (7881, 33190), (9957, 26270), (13135, 19914), (15762, 16595)]