18681104

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:232

約数の個数: 80

約数和(自身を含む): 42705600

約数和(自身を除く): 24024496

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 29, 38, 52, 58, 76, 104, 116, 152, 163, 208, 232, 247, 304, 326, 377, 464, 494, 551, 652, 754, 988, 1102, 1304, 1508, 1976, 2119, 2204, 2608, 3016, 3097, 3952, 4238, 4408, 4727, 6032, 6194, 7163, 8476, 8816, 9454, 12388, 14326, 16952, 18908, 24776, 28652, 33904, 37816, 40261, 49552, 57304, 61451, 75632, 80522, 89813, 114608, 122902, 161044, 179626, 245804, 322088, 359252, 491608, 644176, 718504, 983216, 1167569, 1437008, 2335138, 4670276, 9340552, 18681104]

約数ペア:

[(1, 18681104), (2, 9340552), (4, 4670276), (8, 2335138), (13, 1437008), (16, 1167569), (19, 983216), (26, 718504), (29, 644176), (38, 491608), (52, 359252), (58, 322088), (76, 245804), (104, 179626), (116, 161044), (152, 122902), (163, 114608), (208, 89813), (232, 80522), (247, 75632), (304, 61451), (326, 57304), (377, 49552), (464, 40261), (494, 37816), (551, 33904), (652, 28652), (754, 24776), (988, 18908), (1102, 16952), (1304, 14326), (1508, 12388), (1976, 9454), (2119, 8816), (2204, 8476), (2608, 7163), (3016, 6194), (3097, 6032), (3952, 4727), (4238, 4408)]