25308400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 120

約数和(自身を含む): 68023424

約数和(自身を除く): 42715024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 157, 200, 208, 248, 260, 310, 314, 325, 400, 403, 496, 520, 620, 628, 650, 775, 785, 806, 1040, 1240, 1256, 1300, 1550, 1570, 1612, 2015, 2041, 2480, 2512, 2600, 3100, 3140, 3224, 3925, 4030, 4082, 4867, 5200, 6200, 6280, 6448, 7850, 8060, 8164, 9734, 10075, 10205, 12400, 12560, 15700, 16120, 16328, 19468, 20150, 20410, 24335, 31400, 32240, 32656, 38936, 40300, 40820, 48670, 51025, 62800, 63271, 77872, 80600, 81640, 97340, 102050, 121675, 126542, 161200, 163280, 194680, 204100, 243350, 253084, 316355, 389360, 408200, 486700, 506168, 632710, 816400, 973400, 1012336, 1265420, 1581775, 1946800, 2530840, 3163550, 5061680, 6327100, 12654200, 25308400]

約数ペア:

[(1, 25308400), (2, 12654200), (4, 6327100), (5, 5061680), (8, 3163550), (10, 2530840), (13, 1946800), (16, 1581775), (20, 1265420), (25, 1012336), (26, 973400), (31, 816400), (40, 632710), (50, 506168), (52, 486700), (62, 408200), (65, 389360), (80, 316355), (100, 253084), (104, 243350), (124, 204100), (130, 194680), (155, 163280), (157, 161200), (200, 126542), (208, 121675), (248, 102050), (260, 97340), (310, 81640), (314, 80600), (325, 77872), (400, 63271), (403, 62800), (496, 51025), (520, 48670), (620, 40820), (628, 40300), (650, 38936), (775, 32656), (785, 32240), (806, 31400), (1040, 24335), (1240, 20410), (1256, 20150), (1300, 19468), (1550, 16328), (1570, 16120), (1612, 15700), (2015, 12560), (2041, 12400), (2480, 10205), (2512, 10075), (2600, 9734), (3100, 8164), (3140, 8060), (3224, 7850), (3925, 6448), (4030, 6280), (4082, 6200), (4867, 5200)]