81998956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 176964480

約数和(自身を除く): 94965524

約数列:

[1, 2, 4, 13, 17, 23, 26, 34, 37, 46, 52, 68, 74, 92, 109, 148, 218, 221, 299, 391, 436, 442, 481, 598, 629, 782, 851, 884, 962, 1196, 1258, 1417, 1564, 1702, 1853, 1924, 2507, 2516, 2834, 3404, 3706, 4033, 5014, 5083, 5668, 7412, 8066, 8177, 10028, 10166, 11063, 14467, 16132, 16354, 20332, 22126, 24089, 28934, 32591, 32708, 42619, 44252, 48178, 52429, 57868, 65182, 68561, 85238, 92759, 96356, 104858, 130364, 137122, 170476, 185518, 188071, 209716, 274244, 371036, 376142, 554047, 752284, 891293, 1108094, 1205867, 1576903, 1782586, 2216188, 2411734, 3153806, 3565172, 4823468, 6307612, 20499739, 40999478, 81998956]

約数ペア:

[(1, 81998956), (2, 40999478), (4, 20499739), (13, 6307612), (17, 4823468), (23, 3565172), (26, 3153806), (34, 2411734), (37, 2216188), (46, 1782586), (52, 1576903), (68, 1205867), (74, 1108094), (92, 891293), (109, 752284), (148, 554047), (218, 376142), (221, 371036), (299, 274244), (391, 209716), (436, 188071), (442, 185518), (481, 170476), (598, 137122), (629, 130364), (782, 104858), (851, 96356), (884, 92759), (962, 85238), (1196, 68561), (1258, 65182), (1417, 57868), (1564, 52429), (1702, 48178), (1853, 44252), (1924, 42619), (2507, 32708), (2516, 32591), (2834, 28934), (3404, 24089), (3706, 22126), (4033, 20332), (5014, 16354), (5083, 16132), (5668, 14467), (7412, 11063), (8066, 10166), (8177, 10028)]