31509760

素因数分解:

$2^8\times 5^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 76527360

約数和(自身を除く): 45017600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 239, 256, 320, 412, 478, 515, 640, 824, 956, 1030, 1195, 1280, 1648, 1912, 2060, 2390, 3296, 3824, 4120, 4780, 6592, 7648, 8240, 9560, 13184, 15296, 16480, 19120, 24617, 26368, 30592, 32960, 38240, 49234, 61184, 65920, 76480, 98468, 123085, 131840, 152960, 196936, 246170, 305920, 393872, 492340, 787744, 984680, 1575488, 1969360, 3150976, 3938720, 6301952, 7877440, 15754880, 31509760]

約数ペア:

[(1, 31509760), (2, 15754880), (4, 7877440), (5, 6301952), (8, 3938720), (10, 3150976), (16, 1969360), (20, 1575488), (32, 984680), (40, 787744), (64, 492340), (80, 393872), (103, 305920), (128, 246170), (160, 196936), (206, 152960), (239, 131840), (256, 123085), (320, 98468), (412, 76480), (478, 65920), (515, 61184), (640, 49234), (824, 38240), (956, 32960), (1030, 30592), (1195, 26368), (1280, 24617), (1648, 19120), (1912, 16480), (2060, 15296), (2390, 13184), (3296, 9560), (3824, 8240), (4120, 7648), (4780, 6592)]