81389136

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{659}}^1$

素因数の和:784

約数の個数: 80

約数和(自身を含む): 219985920

約数和(自身を除く): 138596784

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 83, 93, 124, 166, 186, 248, 249, 332, 372, 496, 498, 659, 664, 744, 996, 1318, 1328, 1488, 1977, 1992, 2573, 2636, 3954, 3984, 5146, 5272, 7719, 7908, 10292, 10544, 15438, 15816, 20429, 20584, 30876, 31632, 40858, 41168, 54697, 61287, 61752, 81716, 109394, 122574, 123504, 163432, 164091, 218788, 245148, 326864, 328182, 437576, 490296, 656364, 875152, 980592, 1312728, 1695607, 2625456, 3391214, 5086821, 6782428, 10173642, 13564856, 20347284, 27129712, 40694568, 81389136]

約数ペア:

[(1, 81389136), (2, 40694568), (3, 27129712), (4, 20347284), (6, 13564856), (8, 10173642), (12, 6782428), (16, 5086821), (24, 3391214), (31, 2625456), (48, 1695607), (62, 1312728), (83, 980592), (93, 875152), (124, 656364), (166, 490296), (186, 437576), (248, 328182), (249, 326864), (332, 245148), (372, 218788), (496, 164091), (498, 163432), (659, 123504), (664, 122574), (744, 109394), (996, 81716), (1318, 61752), (1328, 61287), (1488, 54697), (1977, 41168), (1992, 40858), (2573, 31632), (2636, 30876), (3954, 20584), (3984, 20429), (5146, 15816), (5272, 15438), (7719, 10544), (7908, 10292)]