12300040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^2$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 28530540

約数和(自身を除く): 16230500

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 122, 142, 244, 284, 305, 355, 488, 568, 610, 710, 1220, 1420, 2440, 2840, 4331, 5041, 8662, 10082, 17324, 20164, 21655, 25205, 34648, 40328, 43310, 50410, 86620, 100820, 173240, 201640, 307501, 615002, 1230004, 1537505, 2460008, 3075010, 6150020, 12300040]

約数ペア:

[(1, 12300040), (2, 6150020), (4, 3075010), (5, 2460008), (8, 1537505), (10, 1230004), (20, 615002), (40, 307501), (61, 201640), (71, 173240), (122, 100820), (142, 86620), (244, 50410), (284, 43310), (305, 40328), (355, 34648), (488, 25205), (568, 21655), (610, 20164), (710, 17324), (1220, 10082), (1420, 8662), (2440, 5041), (2840, 4331)]