78272500

素因数分解:

$2^2\times 5^4\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:394

約数の個数: 60

約数和(自身を含む): 173194560

約数和(自身を除く): 94922060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 131, 239, 250, 262, 478, 500, 524, 625, 655, 956, 1195, 1250, 1310, 2390, 2500, 2620, 3275, 4780, 5975, 6550, 11950, 13100, 16375, 23900, 29875, 31309, 32750, 59750, 62618, 65500, 81875, 119500, 125236, 149375, 156545, 163750, 298750, 313090, 327500, 597500, 626180, 782725, 1565450, 3130900, 3913625, 7827250, 15654500, 19568125, 39136250, 78272500]

約数ペア:

[(1, 78272500), (2, 39136250), (4, 19568125), (5, 15654500), (10, 7827250), (20, 3913625), (25, 3130900), (50, 1565450), (100, 782725), (125, 626180), (131, 597500), (239, 327500), (250, 313090), (262, 298750), (478, 163750), (500, 156545), (524, 149375), (625, 125236), (655, 119500), (956, 81875), (1195, 65500), (1250, 62618), (1310, 59750), (2390, 32750), (2500, 31309), (2620, 29875), (3275, 23900), (4780, 16375), (5975, 13100), (6550, 11950)]