19908616

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:119

約数の個数: 128

約数和(自身を含む): 50803200

約数和(自身を除く): 30894584

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 29, 41, 46, 52, 56, 58, 82, 91, 92, 104, 116, 161, 164, 182, 184, 203, 232, 287, 299, 322, 328, 364, 377, 406, 533, 574, 598, 644, 667, 728, 754, 812, 943, 1066, 1148, 1189, 1196, 1288, 1334, 1508, 1624, 1886, 2093, 2132, 2296, 2378, 2392, 2639, 2668, 3016, 3731, 3772, 4186, 4264, 4669, 4756, 5278, 5336, 6601, 7462, 7544, 8323, 8372, 8671, 9338, 9512, 10556, 12259, 13202, 14924, 15457, 16646, 16744, 17342, 18676, 21112, 24518, 26404, 27347, 29848, 30914, 33292, 34684, 37352, 49036, 52808, 54694, 60697, 61828, 66584, 69368, 85813, 98072, 108199, 109388, 121394, 123656, 171626, 191429, 216398, 218776, 242788, 343252, 355511, 382858, 432796, 485576, 686504, 711022, 765716, 865592, 1422044, 1531432, 2488577, 2844088, 4977154, 9954308, 19908616]

約数ペア:

[(1, 19908616), (2, 9954308), (4, 4977154), (7, 2844088), (8, 2488577), (13, 1531432), (14, 1422044), (23, 865592), (26, 765716), (28, 711022), (29, 686504), (41, 485576), (46, 432796), (52, 382858), (56, 355511), (58, 343252), (82, 242788), (91, 218776), (92, 216398), (104, 191429), (116, 171626), (161, 123656), (164, 121394), (182, 109388), (184, 108199), (203, 98072), (232, 85813), (287, 69368), (299, 66584), (322, 61828), (328, 60697), (364, 54694), (377, 52808), (406, 49036), (533, 37352), (574, 34684), (598, 33292), (644, 30914), (667, 29848), (728, 27347), (754, 26404), (812, 24518), (943, 21112), (1066, 18676), (1148, 17342), (1189, 16744), (1196, 16646), (1288, 15457), (1334, 14924), (1508, 13202), (1624, 12259), (1886, 10556), (2093, 9512), (2132, 9338), (2296, 8671), (2378, 8372), (2392, 8323), (2639, 7544), (2668, 7462), (3016, 6601), (3731, 5336), (3772, 5278), (4186, 4756), (4264, 4669)]