179936720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:564

約数の個数: 80

約数和(自身を含む): 430686720

約数和(自身を除く): 250750000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 79, 80, 142, 158, 284, 316, 355, 395, 401, 568, 632, 710, 790, 802, 1136, 1264, 1420, 1580, 1604, 2005, 2840, 3160, 3208, 4010, 5609, 5680, 6320, 6416, 8020, 11218, 16040, 22436, 28045, 28471, 31679, 32080, 44872, 56090, 56942, 63358, 89744, 112180, 113884, 126716, 142355, 158395, 224360, 227768, 253432, 284710, 316790, 448720, 455536, 506864, 569420, 633580, 1138840, 1267160, 2249209, 2277680, 2534320, 4498418, 8996836, 11246045, 17993672, 22492090, 35987344, 44984180, 89968360, 179936720]

約数ペア:

[(1, 179936720), (2, 89968360), (4, 44984180), (5, 35987344), (8, 22492090), (10, 17993672), (16, 11246045), (20, 8996836), (40, 4498418), (71, 2534320), (79, 2277680), (80, 2249209), (142, 1267160), (158, 1138840), (284, 633580), (316, 569420), (355, 506864), (395, 455536), (401, 448720), (568, 316790), (632, 284710), (710, 253432), (790, 227768), (802, 224360), (1136, 158395), (1264, 142355), (1420, 126716), (1580, 113884), (1604, 112180), (2005, 89744), (2840, 63358), (3160, 56942), (3208, 56090), (4010, 44872), (5609, 32080), (5680, 31679), (6320, 28471), (6416, 28045), (8020, 22436), (11218, 16040)]