636157040

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{1123}}^1$

素因数の和:1306

約数の個数: 80

約数和(自身を含む): 1516132128

約数和(自身を除く): 879975088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 97, 146, 194, 292, 365, 388, 485, 584, 730, 776, 970, 1123, 1168, 1460, 1552, 1940, 2246, 2920, 3880, 4492, 5615, 5840, 7081, 7760, 8984, 11230, 14162, 17968, 22460, 28324, 35405, 44920, 56648, 70810, 81979, 89840, 108931, 113296, 141620, 163958, 217862, 283240, 327916, 409895, 435724, 544655, 566480, 655832, 819790, 871448, 1089310, 1311664, 1639580, 1742896, 2178620, 3279160, 4357240, 6558320, 7951963, 8714480, 15903926, 31807852, 39759815, 63615704, 79519630, 127231408, 159039260, 318078520, 636157040]

約数ペア:

[(1, 636157040), (2, 318078520), (4, 159039260), (5, 127231408), (8, 79519630), (10, 63615704), (16, 39759815), (20, 31807852), (40, 15903926), (73, 8714480), (80, 7951963), (97, 6558320), (146, 4357240), (194, 3279160), (292, 2178620), (365, 1742896), (388, 1639580), (485, 1311664), (584, 1089310), (730, 871448), (776, 819790), (970, 655832), (1123, 566480), (1168, 544655), (1460, 435724), (1552, 409895), (1940, 327916), (2246, 283240), (2920, 217862), (3880, 163958), (4492, 141620), (5615, 113296), (5840, 108931), (7081, 89840), (7760, 81979), (8984, 70810), (11230, 56648), (14162, 44920), (17968, 35405), (22460, 28324)]