1905194590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{27809}}^1$

素因数の和:27877

約数の個数: 64

約数和(自身を含む): 4036677120

約数和(自身を除く): 2131482530

約数列:

[1, 2, 5, 10, 13, 17, 26, 31, 34, 62, 65, 85, 130, 155, 170, 221, 310, 403, 442, 527, 806, 1054, 1105, 2015, 2210, 2635, 4030, 5270, 6851, 13702, 27809, 34255, 55618, 68510, 139045, 278090, 361517, 472753, 723034, 862079, 945506, 1724158, 1807585, 2363765, 3615170, 4310395, 4727530, 6145789, 8620790, 11207027, 12291578, 14655343, 22414054, 29310686, 30728945, 56035135, 61457890, 73276715, 112070270, 146553430, 190519459, 381038918, 952597295, 1905194590]

約数ペア:

[(1, 1905194590), (2, 952597295), (5, 381038918), (10, 190519459), (13, 146553430), (17, 112070270), (26, 73276715), (31, 61457890), (34, 56035135), (62, 30728945), (65, 29310686), (85, 22414054), (130, 14655343), (155, 12291578), (170, 11207027), (221, 8620790), (310, 6145789), (403, 4727530), (442, 4310395), (527, 3615170), (806, 2363765), (1054, 1807585), (1105, 1724158), (2015, 945506), (2210, 862079), (2635, 723034), (4030, 472753), (5270, 361517), (6851, 278090), (13702, 139045), (27809, 68510), (34255, 55618)]