20679654320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{853}}^1\times {\mathrm{23311}}^1$

素因数の和:24190

約数の個数: 80

約数和(自身を含む): 51841598592

約数和(自身を除く): 31161944272

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 853, 1040, 1706, 3412, 4265, 6824, 8530, 11089, 13648, 17060, 22178, 23311, 34120, 44356, 46622, 55445, 68240, 88712, 93244, 110890, 116555, 177424, 186488, 221780, 233110, 303043, 372976, 443560, 466220, 606086, 887120, 932440, 1212172, 1515215, 1864880, 2424344, 3030430, 4848688, 6060860, 12121720, 19884283, 24243440, 39768566, 79537132, 99421415, 159074264, 198842830, 258495679, 318148528, 397685660, 516991358, 795371320, 1033982716, 1292478395, 1590742640, 2067965432, 2584956790, 4135930864, 5169913580, 10339827160, 20679654320]

約数ペア:

[(1, 20679654320), (2, 10339827160), (4, 5169913580), (5, 4135930864), (8, 2584956790), (10, 2067965432), (13, 1590742640), (16, 1292478395), (20, 1033982716), (26, 795371320), (40, 516991358), (52, 397685660), (65, 318148528), (80, 258495679), (104, 198842830), (130, 159074264), (208, 99421415), (260, 79537132), (520, 39768566), (853, 24243440), (1040, 19884283), (1706, 12121720), (3412, 6060860), (4265, 4848688), (6824, 3030430), (8530, 2424344), (11089, 1864880), (13648, 1515215), (17060, 1212172), (22178, 932440), (23311, 887120), (34120, 606086), (44356, 466220), (46622, 443560), (55445, 372976), (68240, 303043), (88712, 233110), (93244, 221780), (110890, 186488), (116555, 177424)]