261210320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2971}}^1$

素因数の和:3148

約数の個数: 80

約数和(自身を含む): 698729088

約数和(自身を除く): 437518768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 628, 785, 1099, 1256, 1570, 2198, 2512, 2971, 3140, 4396, 5495, 5942, 6280, 8792, 10990, 11884, 12560, 14855, 17584, 20797, 21980, 23768, 29710, 41594, 43960, 47536, 59420, 83188, 87920, 103985, 118840, 166376, 207970, 237680, 332752, 415940, 466447, 831880, 932894, 1663760, 1865788, 2332235, 3265129, 3731576, 4664470, 6530258, 7463152, 9328940, 13060516, 16325645, 18657880, 26121032, 32651290, 37315760, 52242064, 65302580, 130605160, 261210320]

約数ペア:

[(1, 261210320), (2, 130605160), (4, 65302580), (5, 52242064), (7, 37315760), (8, 32651290), (10, 26121032), (14, 18657880), (16, 16325645), (20, 13060516), (28, 9328940), (35, 7463152), (40, 6530258), (56, 4664470), (70, 3731576), (80, 3265129), (112, 2332235), (140, 1865788), (157, 1663760), (280, 932894), (314, 831880), (560, 466447), (628, 415940), (785, 332752), (1099, 237680), (1256, 207970), (1570, 166376), (2198, 118840), (2512, 103985), (2971, 87920), (3140, 83188), (4396, 59420), (5495, 47536), (5942, 43960), (6280, 41594), (8792, 29710), (10990, 23768), (11884, 21980), (12560, 20797), (14855, 17584)]