81607792

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:518

約数の個数: 80

約数和(自身を含む): 189987840

約数和(自身を除く): 108380048

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 47, 56, 74, 94, 112, 148, 188, 259, 296, 329, 376, 419, 518, 592, 658, 752, 838, 1036, 1316, 1676, 1739, 2072, 2632, 2933, 3352, 3478, 4144, 5264, 5866, 6704, 6956, 11732, 12173, 13912, 15503, 19693, 23464, 24346, 27824, 31006, 39386, 46928, 48692, 62012, 78772, 97384, 108521, 124024, 137851, 157544, 194768, 217042, 248048, 275702, 315088, 434084, 551404, 728641, 868168, 1102808, 1457282, 1736336, 2205616, 2914564, 5100487, 5829128, 10200974, 11658256, 20401948, 40803896, 81607792]

約数ペア:

[(1, 81607792), (2, 40803896), (4, 20401948), (7, 11658256), (8, 10200974), (14, 5829128), (16, 5100487), (28, 2914564), (37, 2205616), (47, 1736336), (56, 1457282), (74, 1102808), (94, 868168), (112, 728641), (148, 551404), (188, 434084), (259, 315088), (296, 275702), (329, 248048), (376, 217042), (419, 194768), (518, 157544), (592, 137851), (658, 124024), (752, 108521), (838, 97384), (1036, 78772), (1316, 62012), (1676, 48692), (1739, 46928), (2072, 39386), (2632, 31006), (2933, 27824), (3352, 24346), (3478, 23464), (4144, 19693), (5264, 15503), (5866, 13912), (6704, 12173), (6956, 11732)]