2019381520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{21817}}^1$

素因数の和:21932

約数の個数: 80

約数和(自身を含む): 5113266480

約数和(自身を除く): 3093884960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 89, 104, 130, 178, 208, 260, 356, 445, 520, 712, 890, 1040, 1157, 1424, 1780, 2314, 3560, 4628, 5785, 7120, 9256, 11570, 18512, 21817, 23140, 43634, 46280, 87268, 92560, 109085, 174536, 218170, 283621, 349072, 436340, 567242, 872680, 1134484, 1418105, 1745360, 1941713, 2268968, 2836210, 3883426, 4537936, 5672420, 7766852, 9708565, 11344840, 15533704, 19417130, 22689680, 25242269, 31067408, 38834260, 50484538, 77668520, 100969076, 126211345, 155337040, 201938152, 252422690, 403876304, 504845380, 1009690760, 2019381520]

約数ペア:

[(1, 2019381520), (2, 1009690760), (4, 504845380), (5, 403876304), (8, 252422690), (10, 201938152), (13, 155337040), (16, 126211345), (20, 100969076), (26, 77668520), (40, 50484538), (52, 38834260), (65, 31067408), (80, 25242269), (89, 22689680), (104, 19417130), (130, 15533704), (178, 11344840), (208, 9708565), (260, 7766852), (356, 5672420), (445, 4537936), (520, 3883426), (712, 2836210), (890, 2268968), (1040, 1941713), (1157, 1745360), (1424, 1418105), (1780, 1134484), (2314, 872680), (3560, 567242), (4628, 436340), (5785, 349072), (7120, 283621), (9256, 218170), (11570, 174536), (18512, 109085), (21817, 92560), (23140, 87268), (43634, 46280)]