28440880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:119

約数の個数: 160

約数和(自身を含む): 78744960

約数和(自身を除く): 50304080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 29, 40, 41, 46, 52, 58, 65, 80, 82, 92, 104, 115, 116, 130, 145, 164, 184, 205, 208, 230, 232, 260, 290, 299, 328, 368, 377, 410, 460, 464, 520, 533, 580, 598, 656, 667, 754, 820, 920, 943, 1040, 1066, 1160, 1189, 1196, 1334, 1495, 1508, 1640, 1840, 1885, 1886, 2132, 2320, 2378, 2392, 2665, 2668, 2990, 3016, 3280, 3335, 3770, 3772, 4264, 4715, 4756, 4784, 5330, 5336, 5945, 5980, 6032, 6670, 7540, 7544, 8528, 8671, 9430, 9512, 10660, 10672, 11890, 11960, 12259, 13340, 15080, 15088, 15457, 17342, 18860, 19024, 21320, 23780, 23920, 24518, 26680, 27347, 30160, 30914, 34684, 37720, 42640, 43355, 47560, 49036, 53360, 54694, 61295, 61828, 69368, 75440, 77285, 86710, 95120, 98072, 109388, 122590, 123656, 136735, 138736, 154570, 173420, 196144, 218776, 245180, 247312, 273470, 309140, 346840, 355511, 437552, 490360, 546940, 618280, 693680, 711022, 980720, 1093880, 1236560, 1422044, 1777555, 2187760, 2844088, 3555110, 5688176, 7110220, 14220440, 28440880]

約数ペア:

[(1, 28440880), (2, 14220440), (4, 7110220), (5, 5688176), (8, 3555110), (10, 2844088), (13, 2187760), (16, 1777555), (20, 1422044), (23, 1236560), (26, 1093880), (29, 980720), (40, 711022), (41, 693680), (46, 618280), (52, 546940), (58, 490360), (65, 437552), (80, 355511), (82, 346840), (92, 309140), (104, 273470), (115, 247312), (116, 245180), (130, 218776), (145, 196144), (164, 173420), (184, 154570), (205, 138736), (208, 136735), (230, 123656), (232, 122590), (260, 109388), (290, 98072), (299, 95120), (328, 86710), (368, 77285), (377, 75440), (410, 69368), (460, 61828), (464, 61295), (520, 54694), (533, 53360), (580, 49036), (598, 47560), (656, 43355), (667, 42640), (754, 37720), (820, 34684), (920, 30914), (943, 30160), (1040, 27347), (1066, 26680), (1160, 24518), (1189, 23920), (1196, 23780), (1334, 21320), (1495, 19024), (1508, 18860), (1640, 17342), (1840, 15457), (1885, 15088), (1886, 15080), (2132, 13340), (2320, 12259), (2378, 11960), (2392, 11890), (2665, 10672), (2668, 10660), (2990, 9512), (3016, 9430), (3280, 8671), (3335, 8528), (3770, 7544), (3772, 7540), (4264, 6670), (4715, 6032), (4756, 5980), (4784, 5945), (5330, 5336)]