128474320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:221

約数の個数: 160

約数和(自身を含む): 346477824

約数和(自身を除く): 218003504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 41, 46, 52, 65, 80, 82, 92, 104, 115, 130, 131, 164, 184, 205, 208, 230, 260, 262, 299, 328, 368, 410, 460, 520, 524, 533, 598, 655, 656, 820, 920, 943, 1040, 1048, 1066, 1196, 1310, 1495, 1640, 1703, 1840, 1886, 2096, 2132, 2392, 2620, 2665, 2990, 3013, 3280, 3406, 3772, 4264, 4715, 4784, 5240, 5330, 5371, 5980, 6026, 6812, 7544, 8515, 8528, 9430, 10480, 10660, 10742, 11960, 12052, 12259, 13624, 15065, 15088, 17030, 18860, 21320, 21484, 23920, 24104, 24518, 26855, 27248, 30130, 34060, 37720, 39169, 42640, 42968, 48208, 49036, 53710, 60260, 61295, 68120, 69823, 75440, 78338, 85936, 98072, 107420, 120520, 122590, 123533, 136240, 139646, 156676, 195845, 196144, 214840, 241040, 245180, 247066, 279292, 313352, 349115, 391690, 429680, 490360, 494132, 558584, 617665, 626704, 698230, 783380, 980720, 988264, 1117168, 1235330, 1396460, 1566760, 1605929, 1976528, 2470660, 2792920, 3133520, 3211858, 4941320, 5585840, 6423716, 8029645, 9882640, 12847432, 16059290, 25694864, 32118580, 64237160, 128474320]

約数ペア:

[(1, 128474320), (2, 64237160), (4, 32118580), (5, 25694864), (8, 16059290), (10, 12847432), (13, 9882640), (16, 8029645), (20, 6423716), (23, 5585840), (26, 4941320), (40, 3211858), (41, 3133520), (46, 2792920), (52, 2470660), (65, 1976528), (80, 1605929), (82, 1566760), (92, 1396460), (104, 1235330), (115, 1117168), (130, 988264), (131, 980720), (164, 783380), (184, 698230), (205, 626704), (208, 617665), (230, 558584), (260, 494132), (262, 490360), (299, 429680), (328, 391690), (368, 349115), (410, 313352), (460, 279292), (520, 247066), (524, 245180), (533, 241040), (598, 214840), (655, 196144), (656, 195845), (820, 156676), (920, 139646), (943, 136240), (1040, 123533), (1048, 122590), (1066, 120520), (1196, 107420), (1310, 98072), (1495, 85936), (1640, 78338), (1703, 75440), (1840, 69823), (1886, 68120), (2096, 61295), (2132, 60260), (2392, 53710), (2620, 49036), (2665, 48208), (2990, 42968), (3013, 42640), (3280, 39169), (3406, 37720), (3772, 34060), (4264, 30130), (4715, 27248), (4784, 26855), (5240, 24518), (5330, 24104), (5371, 23920), (5980, 21484), (6026, 21320), (6812, 18860), (7544, 17030), (8515, 15088), (8528, 15065), (9430, 13624), (10480, 12259), (10660, 12052), (10742, 11960)]