251444452

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{1489}}^1$

素因数の和:1700

約数の個数: 48

約数和(自身を含む): 519998080

約数和(自身を除く): 268553628

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 163, 259, 326, 518, 652, 1036, 1141, 1489, 2282, 2978, 4564, 5956, 6031, 10423, 12062, 20846, 24124, 41692, 42217, 55093, 84434, 110186, 168868, 220372, 242707, 385651, 485414, 771302, 970828, 1542604, 1698949, 3397898, 6795796, 8980159, 17960318, 35920636, 62861113, 125722226, 251444452]

約数ペア:

[(1, 251444452), (2, 125722226), (4, 62861113), (7, 35920636), (14, 17960318), (28, 8980159), (37, 6795796), (74, 3397898), (148, 1698949), (163, 1542604), (259, 970828), (326, 771302), (518, 485414), (652, 385651), (1036, 242707), (1141, 220372), (1489, 168868), (2282, 110186), (2978, 84434), (4564, 55093), (5956, 42217), (6031, 41692), (10423, 24124), (12062, 20846)]