39671960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 92404800

約数和(自身を除く): 52732840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 122, 142, 229, 244, 284, 305, 355, 458, 488, 568, 610, 710, 916, 1145, 1220, 1420, 1832, 2290, 2440, 2840, 4331, 4580, 8662, 9160, 13969, 16259, 17324, 21655, 27938, 32518, 34648, 43310, 55876, 65036, 69845, 81295, 86620, 111752, 130072, 139690, 162590, 173240, 279380, 325180, 558760, 650360, 991799, 1983598, 3967196, 4958995, 7934392, 9917990, 19835980, 39671960]

約数ペア:

[(1, 39671960), (2, 19835980), (4, 9917990), (5, 7934392), (8, 4958995), (10, 3967196), (20, 1983598), (40, 991799), (61, 650360), (71, 558760), (122, 325180), (142, 279380), (229, 173240), (244, 162590), (284, 139690), (305, 130072), (355, 111752), (458, 86620), (488, 81295), (568, 69845), (610, 65036), (710, 55876), (916, 43310), (1145, 34648), (1220, 32518), (1420, 27938), (1832, 21655), (2290, 17324), (2440, 16259), (2840, 13969), (4331, 9160), (4580, 8662)]