28169940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:321

約数の個数: 96

約数和(自身を含む): 83462400

約数和(自身を除く): 55292460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 137, 138, 149, 230, 274, 276, 298, 345, 411, 447, 460, 548, 596, 685, 690, 745, 822, 894, 1370, 1380, 1490, 1644, 1788, 2055, 2235, 2740, 2980, 3151, 3427, 4110, 4470, 6302, 6854, 8220, 8940, 9453, 10281, 12604, 13708, 15755, 17135, 18906, 20413, 20562, 31510, 34270, 37812, 40826, 41124, 47265, 51405, 61239, 63020, 68540, 81652, 94530, 102065, 102810, 122478, 189060, 204130, 205620, 244956, 306195, 408260, 469499, 612390, 938998, 1224780, 1408497, 1877996, 2347495, 2816994, 4694990, 5633988, 7042485, 9389980, 14084970, 28169940]

約数ペア:

[(1, 28169940), (2, 14084970), (3, 9389980), (4, 7042485), (5, 5633988), (6, 4694990), (10, 2816994), (12, 2347495), (15, 1877996), (20, 1408497), (23, 1224780), (30, 938998), (46, 612390), (60, 469499), (69, 408260), (92, 306195), (115, 244956), (137, 205620), (138, 204130), (149, 189060), (230, 122478), (274, 102810), (276, 102065), (298, 94530), (345, 81652), (411, 68540), (447, 63020), (460, 61239), (548, 51405), (596, 47265), (685, 41124), (690, 40826), (745, 37812), (822, 34270), (894, 31510), (1370, 20562), (1380, 20413), (1490, 18906), (1644, 17135), (1788, 15755), (2055, 13708), (2235, 12604), (2740, 10281), (2980, 9453), (3151, 8940), (3427, 8220), (4110, 6854), (4470, 6302)]