278883280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:269

約数の個数: 160

約数和(自身を含む): 742452480

約数和(自身を除く): 463569200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 89, 92, 104, 115, 130, 131, 178, 184, 208, 230, 260, 262, 299, 356, 368, 445, 460, 520, 524, 598, 655, 712, 890, 920, 1040, 1048, 1157, 1196, 1310, 1424, 1495, 1703, 1780, 1840, 2047, 2096, 2314, 2392, 2620, 2990, 3013, 3406, 3560, 4094, 4628, 4784, 5240, 5785, 5980, 6026, 6812, 7120, 8188, 8515, 9256, 10235, 10480, 11570, 11659, 11960, 12052, 13624, 15065, 16376, 17030, 18512, 20470, 23140, 23318, 23920, 24104, 26611, 27248, 30130, 32752, 34060, 39169, 40940, 46280, 46636, 48208, 53222, 58295, 60260, 68120, 78338, 81880, 92560, 93272, 106444, 116590, 120520, 133055, 136240, 151567, 156676, 163760, 186544, 195845, 212888, 233180, 241040, 266110, 268157, 303134, 313352, 391690, 425776, 466360, 532220, 536314, 606268, 626704, 757835, 783380, 932720, 1064440, 1072628, 1212536, 1340785, 1515670, 1566760, 2128880, 2145256, 2425072, 2681570, 3031340, 3133520, 3486041, 4290512, 5363140, 6062680, 6972082, 10726280, 12125360, 13944164, 17430205, 21452560, 27888328, 34860410, 55776656, 69720820, 139441640, 278883280]

約数ペア:

[(1, 278883280), (2, 139441640), (4, 69720820), (5, 55776656), (8, 34860410), (10, 27888328), (13, 21452560), (16, 17430205), (20, 13944164), (23, 12125360), (26, 10726280), (40, 6972082), (46, 6062680), (52, 5363140), (65, 4290512), (80, 3486041), (89, 3133520), (92, 3031340), (104, 2681570), (115, 2425072), (130, 2145256), (131, 2128880), (178, 1566760), (184, 1515670), (208, 1340785), (230, 1212536), (260, 1072628), (262, 1064440), (299, 932720), (356, 783380), (368, 757835), (445, 626704), (460, 606268), (520, 536314), (524, 532220), (598, 466360), (655, 425776), (712, 391690), (890, 313352), (920, 303134), (1040, 268157), (1048, 266110), (1157, 241040), (1196, 233180), (1310, 212888), (1424, 195845), (1495, 186544), (1703, 163760), (1780, 156676), (1840, 151567), (2047, 136240), (2096, 133055), (2314, 120520), (2392, 116590), (2620, 106444), (2990, 93272), (3013, 92560), (3406, 81880), (3560, 78338), (4094, 68120), (4628, 60260), (4784, 58295), (5240, 53222), (5785, 48208), (5980, 46636), (6026, 46280), (6812, 40940), (7120, 39169), (8188, 34060), (8515, 32752), (9256, 30130), (10235, 27248), (10480, 26611), (11570, 24104), (11659, 23920), (11960, 23318), (12052, 23140), (13624, 20470), (15065, 18512), (16376, 17030)]