81444564

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 234823680

約数和(自身を除く): 153379116

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 31, 36, 38, 46, 57, 62, 69, 76, 92, 93, 114, 124, 138, 167, 171, 186, 207, 228, 276, 279, 334, 342, 372, 414, 437, 501, 558, 589, 668, 684, 713, 828, 874, 1002, 1116, 1178, 1311, 1426, 1503, 1748, 1767, 2004, 2139, 2356, 2622, 2852, 3006, 3173, 3534, 3841, 3933, 4278, 5177, 5244, 5301, 6012, 6346, 6417, 7068, 7682, 7866, 8556, 9519, 10354, 10602, 11523, 12692, 12834, 13547, 15364, 15531, 15732, 19038, 20708, 21204, 23046, 25668, 27094, 28557, 31062, 34569, 38076, 40641, 46092, 46593, 54188, 57114, 62124, 69138, 72979, 81282, 93186, 98363, 114228, 119071, 121923, 138276, 145958, 162564, 186372, 196726, 218937, 238142, 243846, 291916, 295089, 357213, 393452, 437874, 476284, 487692, 590178, 656811, 714426, 875748, 885267, 1071639, 1180356, 1313622, 1428852, 1770534, 2143278, 2262349, 2627244, 3541068, 4286556, 4524698, 6787047, 9049396, 13574094, 20361141, 27148188, 40722282, 81444564]

約数ペア:

[(1, 81444564), (2, 40722282), (3, 27148188), (4, 20361141), (6, 13574094), (9, 9049396), (12, 6787047), (18, 4524698), (19, 4286556), (23, 3541068), (31, 2627244), (36, 2262349), (38, 2143278), (46, 1770534), (57, 1428852), (62, 1313622), (69, 1180356), (76, 1071639), (92, 885267), (93, 875748), (114, 714426), (124, 656811), (138, 590178), (167, 487692), (171, 476284), (186, 437874), (207, 393452), (228, 357213), (276, 295089), (279, 291916), (334, 243846), (342, 238142), (372, 218937), (414, 196726), (437, 186372), (501, 162564), (558, 145958), (589, 138276), (668, 121923), (684, 119071), (713, 114228), (828, 98363), (874, 93186), (1002, 81282), (1116, 72979), (1178, 69138), (1311, 62124), (1426, 57114), (1503, 54188), (1748, 46593), (1767, 46092), (2004, 40641), (2139, 38076), (2356, 34569), (2622, 31062), (2852, 28557), (3006, 27094), (3173, 25668), (3534, 23046), (3841, 21204), (3933, 20708), (4278, 19038), (5177, 15732), (5244, 15531), (5301, 15364), (6012, 13547), (6346, 12834), (6417, 12692), (7068, 11523), (7682, 10602), (7866, 10354), (8556, 9519)]