18807573455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3823}}^1\times {\mathrm{3889}}^1$

素因数の和:7751

約数の個数: 32

約数和(自身を含む): 25704622080

約数和(自身を除く): 6897048625

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 3823, 3889, 19115, 19445, 42053, 42779, 87929, 89447, 210265, 213895, 439645, 447235, 967219, 983917, 4836095, 4919585, 14867647, 74338235, 163544117, 341955881, 817720585, 1709779405, 3761514691, 18807573455]

約数ペア:

[(1, 18807573455), (5, 3761514691), (11, 1709779405), (23, 817720585), (55, 341955881), (115, 163544117), (253, 74338235), (1265, 14867647), (3823, 4919585), (3889, 4836095), (19115, 983917), (19445, 967219), (42053, 447235), (42779, 439645), (87929, 213895), (89447, 210265)]