25979240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 128

約数和(自身を含む): 71608320

約数和(自身を除く): 45629080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 41, 56, 62, 70, 73, 82, 124, 140, 146, 155, 164, 205, 217, 248, 280, 287, 292, 310, 328, 365, 410, 434, 511, 574, 584, 620, 730, 820, 868, 1022, 1085, 1148, 1240, 1271, 1435, 1460, 1640, 1736, 2044, 2170, 2263, 2296, 2542, 2555, 2870, 2920, 2993, 4088, 4340, 4526, 5084, 5110, 5740, 5986, 6355, 8680, 8897, 9052, 10168, 10220, 11315, 11480, 11972, 12710, 14965, 15841, 17794, 18104, 20440, 20951, 22630, 23944, 25420, 29930, 31682, 35588, 41902, 44485, 45260, 50840, 59860, 63364, 71176, 79205, 83804, 88970, 90520, 92783, 104755, 119720, 126728, 158410, 167608, 177940, 185566, 209510, 316820, 355880, 371132, 419020, 463915, 633640, 649481, 742264, 838040, 927830, 1298962, 1855660, 2597924, 3247405, 3711320, 5195848, 6494810, 12989620, 25979240]

約数ペア:

[(1, 25979240), (2, 12989620), (4, 6494810), (5, 5195848), (7, 3711320), (8, 3247405), (10, 2597924), (14, 1855660), (20, 1298962), (28, 927830), (31, 838040), (35, 742264), (40, 649481), (41, 633640), (56, 463915), (62, 419020), (70, 371132), (73, 355880), (82, 316820), (124, 209510), (140, 185566), (146, 177940), (155, 167608), (164, 158410), (205, 126728), (217, 119720), (248, 104755), (280, 92783), (287, 90520), (292, 88970), (310, 83804), (328, 79205), (365, 71176), (410, 63364), (434, 59860), (511, 50840), (574, 45260), (584, 44485), (620, 41902), (730, 35588), (820, 31682), (868, 29930), (1022, 25420), (1085, 23944), (1148, 22630), (1240, 20951), (1271, 20440), (1435, 18104), (1460, 17794), (1640, 15841), (1736, 14965), (2044, 12710), (2170, 11972), (2263, 11480), (2296, 11315), (2542, 10220), (2555, 10168), (2870, 9052), (2920, 8897), (2993, 8680), (4088, 6355), (4340, 5986), (4526, 5740), (5084, 5110)]