12813320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 31857840

約数和(自身を除く): 19044520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 601, 820, 1066, 1202, 1640, 2132, 2404, 2665, 3005, 4264, 4808, 5330, 6010, 7813, 10660, 12020, 15626, 21320, 24040, 24641, 31252, 39065, 49282, 62504, 78130, 98564, 123205, 156260, 197128, 246410, 312520, 320333, 492820, 640666, 985640, 1281332, 1601665, 2562664, 3203330, 6406660, 12813320]

約数ペア:

[(1, 12813320), (2, 6406660), (4, 3203330), (5, 2562664), (8, 1601665), (10, 1281332), (13, 985640), (20, 640666), (26, 492820), (40, 320333), (41, 312520), (52, 246410), (65, 197128), (82, 156260), (104, 123205), (130, 98564), (164, 78130), (205, 62504), (260, 49282), (328, 39065), (410, 31252), (520, 24641), (533, 24040), (601, 21320), (820, 15626), (1066, 12020), (1202, 10660), (1640, 7813), (2132, 6010), (2404, 5330), (2665, 4808), (3005, 4264)]