12856551220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1\times {\mathrm{541}}^1$

素因数の和:1061

約数の個数: 96

約数和(自身を含む): 28158703776

約数和(自身を除く): 15302152556

約数列:

[1, 2, 4, 5, 10, 20, 41, 73, 82, 146, 164, 205, 292, 365, 397, 410, 541, 730, 794, 820, 1082, 1460, 1588, 1985, 2164, 2705, 2993, 3970, 5410, 5986, 7940, 10820, 11972, 14965, 16277, 22181, 28981, 29930, 32554, 39493, 44362, 57962, 59860, 65108, 78986, 81385, 88724, 110905, 115924, 144905, 157972, 162770, 197465, 214777, 221810, 289810, 325540, 394930, 429554, 443620, 579620, 789860, 859108, 1073885, 1188221, 1619213, 2147770, 2376442, 3238426, 4295540, 4752884, 5941105, 6476852, 8096065, 8805857, 11882210, 15678721, 16192130, 17611714, 23764420, 31357442, 32384260, 35223428, 44029285, 62714884, 78393605, 88058570, 156787210, 176117140, 313574420, 642827561, 1285655122, 2571310244, 3214137805, 6428275610, 12856551220]

約数ペア:

[(1, 12856551220), (2, 6428275610), (4, 3214137805), (5, 2571310244), (10, 1285655122), (20, 642827561), (41, 313574420), (73, 176117140), (82, 156787210), (146, 88058570), (164, 78393605), (205, 62714884), (292, 44029285), (365, 35223428), (397, 32384260), (410, 31357442), (541, 23764420), (730, 17611714), (794, 16192130), (820, 15678721), (1082, 11882210), (1460, 8805857), (1588, 8096065), (1985, 6476852), (2164, 5941105), (2705, 4752884), (2993, 4295540), (3970, 3238426), (5410, 2376442), (5986, 2147770), (7940, 1619213), (10820, 1188221), (11972, 1073885), (14965, 859108), (16277, 789860), (22181, 579620), (28981, 443620), (29930, 429554), (32554, 394930), (39493, 325540), (44362, 289810), (57962, 221810), (59860, 214777), (65108, 197465), (78986, 162770), (81385, 157972), (88724, 144905), (110905, 115924)]