18408416

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:196

約数の個数: 96

約数和(自身を含む): 43817760

約数和(自身を除く): 25409344

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 32, 34, 38, 52, 68, 76, 104, 136, 137, 152, 208, 221, 247, 272, 274, 304, 323, 416, 442, 494, 544, 548, 608, 646, 884, 988, 1096, 1292, 1768, 1781, 1976, 2192, 2329, 2584, 2603, 3536, 3562, 3952, 4199, 4384, 4658, 5168, 5206, 7072, 7124, 7904, 8398, 9316, 10336, 10412, 14248, 16796, 18632, 20824, 28496, 30277, 33592, 33839, 37264, 41648, 44251, 56992, 60554, 67184, 67678, 74528, 83296, 88502, 121108, 134368, 135356, 177004, 242216, 270712, 354008, 484432, 541424, 575263, 708016, 968864, 1082848, 1150526, 1416032, 2301052, 4602104, 9204208, 18408416]

約数ペア:

[(1, 18408416), (2, 9204208), (4, 4602104), (8, 2301052), (13, 1416032), (16, 1150526), (17, 1082848), (19, 968864), (26, 708016), (32, 575263), (34, 541424), (38, 484432), (52, 354008), (68, 270712), (76, 242216), (104, 177004), (136, 135356), (137, 134368), (152, 121108), (208, 88502), (221, 83296), (247, 74528), (272, 67678), (274, 67184), (304, 60554), (323, 56992), (416, 44251), (442, 41648), (494, 37264), (544, 33839), (548, 33592), (608, 30277), (646, 28496), (884, 20824), (988, 18632), (1096, 16796), (1292, 14248), (1768, 10412), (1781, 10336), (1976, 9316), (2192, 8398), (2329, 7904), (2584, 7124), (2603, 7072), (3536, 5206), (3562, 5168), (3952, 4658), (4199, 4384)]