1380451280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{971}}^1\times {\mathrm{1367}}^1$

素因数の和:2364

約数の個数: 80

約数和(自身を含む): 3462528384

約数和(自身を除く): 2082077104

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 971, 1040, 1367, 1942, 2734, 3884, 4855, 5468, 6835, 7768, 9710, 10936, 12623, 13670, 15536, 17771, 19420, 21872, 25246, 27340, 35542, 38840, 50492, 54680, 63115, 71084, 77680, 88855, 100984, 109360, 126230, 142168, 177710, 201968, 252460, 284336, 355420, 504920, 710840, 1009840, 1327357, 1421680, 2654714, 5309428, 6636785, 10618856, 13273570, 17255641, 21237712, 26547140, 34511282, 53094280, 69022564, 86278205, 106188560, 138045128, 172556410, 276090256, 345112820, 690225640, 1380451280]

約数ペア:

[(1, 1380451280), (2, 690225640), (4, 345112820), (5, 276090256), (8, 172556410), (10, 138045128), (13, 106188560), (16, 86278205), (20, 69022564), (26, 53094280), (40, 34511282), (52, 26547140), (65, 21237712), (80, 17255641), (104, 13273570), (130, 10618856), (208, 6636785), (260, 5309428), (520, 2654714), (971, 1421680), (1040, 1327357), (1367, 1009840), (1942, 710840), (2734, 504920), (3884, 355420), (4855, 284336), (5468, 252460), (6835, 201968), (7768, 177710), (9710, 142168), (10936, 126230), (12623, 109360), (13670, 100984), (15536, 88855), (17771, 77680), (19420, 71084), (21872, 63115), (25246, 54680), (27340, 50492), (35542, 38840)]