20103928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 43817760

約数和(自身を除く): 23713832

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 83, 104, 136, 137, 166, 221, 274, 332, 442, 548, 664, 884, 1079, 1096, 1411, 1768, 1781, 2158, 2329, 2822, 3562, 4316, 4658, 5644, 7124, 8632, 9316, 11288, 11371, 14248, 18343, 18632, 22742, 30277, 36686, 45484, 60554, 73372, 90968, 121108, 146744, 147823, 193307, 242216, 295646, 386614, 591292, 773228, 1182584, 1546456, 2512991, 5025982, 10051964, 20103928]

約数ペア:

[(1, 20103928), (2, 10051964), (4, 5025982), (8, 2512991), (13, 1546456), (17, 1182584), (26, 773228), (34, 591292), (52, 386614), (68, 295646), (83, 242216), (104, 193307), (136, 147823), (137, 146744), (166, 121108), (221, 90968), (274, 73372), (332, 60554), (442, 45484), (548, 36686), (664, 30277), (884, 22742), (1079, 18632), (1096, 18343), (1411, 14248), (1768, 11371), (1781, 11288), (2158, 9316), (2329, 8632), (2822, 7124), (3562, 5644), (4316, 4658)]