85981940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 206236800

約数和(自身を除く): 120254860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 61, 86, 110, 122, 149, 172, 215, 220, 244, 298, 305, 430, 473, 596, 610, 671, 745, 860, 946, 1220, 1342, 1490, 1639, 1892, 2365, 2623, 2684, 2980, 3278, 3355, 4730, 5246, 6407, 6556, 6710, 8195, 9089, 9460, 10492, 12814, 13115, 13420, 16390, 18178, 25628, 26230, 28853, 32035, 32780, 36356, 45445, 52460, 57706, 64070, 70477, 90890, 99979, 115412, 128140, 140954, 144265, 181780, 199958, 281908, 288530, 352385, 390827, 399916, 499895, 577060, 704770, 781654, 999790, 1409540, 1563308, 1954135, 1999580, 3908270, 4299097, 7816540, 8598194, 17196388, 21495485, 42990970, 85981940]

約数ペア:

[(1, 85981940), (2, 42990970), (4, 21495485), (5, 17196388), (10, 8598194), (11, 7816540), (20, 4299097), (22, 3908270), (43, 1999580), (44, 1954135), (55, 1563308), (61, 1409540), (86, 999790), (110, 781654), (122, 704770), (149, 577060), (172, 499895), (215, 399916), (220, 390827), (244, 352385), (298, 288530), (305, 281908), (430, 199958), (473, 181780), (596, 144265), (610, 140954), (671, 128140), (745, 115412), (860, 99979), (946, 90890), (1220, 70477), (1342, 64070), (1490, 57706), (1639, 52460), (1892, 45445), (2365, 36356), (2623, 32780), (2684, 32035), (2980, 28853), (3278, 26230), (3355, 25628), (4730, 18178), (5246, 16390), (6407, 13420), (6556, 13115), (6710, 12814), (8195, 10492), (9089, 9460)]