21257069500

素因数分解:

$2^2\times 5^3\times {\mathrm{127}}^1\times {\mathrm{557}}^1\times {\mathrm{601}}^1$

素因数の和:1304

約数の個数: 96

約数和(自身を含む): 46952994816

約数和(自身を除く): 25695925316

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 127, 250, 254, 500, 508, 557, 601, 635, 1114, 1202, 1270, 2228, 2404, 2540, 2785, 3005, 3175, 5570, 6010, 6350, 11140, 12020, 12700, 13925, 15025, 15875, 27850, 30050, 31750, 55700, 60100, 63500, 69625, 70739, 75125, 76327, 139250, 141478, 150250, 152654, 278500, 282956, 300500, 305308, 334757, 353695, 381635, 669514, 707390, 763270, 1339028, 1414780, 1526540, 1673785, 1768475, 1908175, 3347570, 3536950, 3816350, 6695140, 7073900, 7632700, 8368925, 8842375, 9540875, 16737850, 17684750, 19081750, 33475700, 35369500, 38163500, 41844625, 42514139, 83689250, 85028278, 167378500, 170056556, 212570695, 425141390, 850282780, 1062853475, 2125706950, 4251413900, 5314267375, 10628534750, 21257069500]

約数ペア:

[(1, 21257069500), (2, 10628534750), (4, 5314267375), (5, 4251413900), (10, 2125706950), (20, 1062853475), (25, 850282780), (50, 425141390), (100, 212570695), (125, 170056556), (127, 167378500), (250, 85028278), (254, 83689250), (500, 42514139), (508, 41844625), (557, 38163500), (601, 35369500), (635, 33475700), (1114, 19081750), (1202, 17684750), (1270, 16737850), (2228, 9540875), (2404, 8842375), (2540, 8368925), (2785, 7632700), (3005, 7073900), (3175, 6695140), (5570, 3816350), (6010, 3536950), (6350, 3347570), (11140, 1908175), (12020, 1768475), (12700, 1673785), (13925, 1526540), (15025, 1414780), (15875, 1339028), (27850, 763270), (30050, 707390), (31750, 669514), (55700, 381635), (60100, 353695), (63500, 334757), (69625, 305308), (70739, 300500), (75125, 282956), (76327, 278500), (139250, 152654), (141478, 150250)]