291217860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22787}}^1$

素因数の和:22873

約数の個数: 72

約数和(自身を含む): 895841856

約数和(自身を除く): 604623996

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 22787, 45574, 68361, 91148, 113935, 136722, 205083, 227870, 273444, 341805, 410166, 455740, 683610, 820332, 1025415, 1367220, 1617877, 2050830, 3235754, 4101660, 4853631, 6471508, 8089385, 9707262, 14560893, 16178770, 19414524, 24268155, 29121786, 32357540, 48536310, 58243572, 72804465, 97072620, 145608930, 291217860]

約数ペア:

[(1, 291217860), (2, 145608930), (3, 97072620), (4, 72804465), (5, 58243572), (6, 48536310), (9, 32357540), (10, 29121786), (12, 24268155), (15, 19414524), (18, 16178770), (20, 14560893), (30, 9707262), (36, 8089385), (45, 6471508), (60, 4853631), (71, 4101660), (90, 3235754), (142, 2050830), (180, 1617877), (213, 1367220), (284, 1025415), (355, 820332), (426, 683610), (639, 455740), (710, 410166), (852, 341805), (1065, 273444), (1278, 227870), (1420, 205083), (2130, 136722), (2556, 113935), (3195, 91148), (4260, 68361), (6390, 45574), (12780, 22787)]