31211600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:253

約数の個数: 120

約数和(自身を含む): 87458688

約数和(自身を除く): 56247088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 71, 80, 100, 112, 140, 142, 157, 175, 200, 280, 284, 314, 350, 355, 400, 497, 560, 568, 628, 700, 710, 785, 994, 1099, 1136, 1256, 1400, 1420, 1570, 1775, 1988, 2198, 2485, 2512, 2800, 2840, 3140, 3550, 3925, 3976, 4396, 4970, 5495, 5680, 6280, 7100, 7850, 7952, 8792, 9940, 10990, 11147, 12425, 12560, 14200, 15700, 17584, 19880, 21980, 22294, 24850, 27475, 28400, 31400, 39760, 43960, 44588, 49700, 54950, 55735, 62800, 78029, 87920, 89176, 99400, 109900, 111470, 156058, 178352, 198800, 219800, 222940, 278675, 312116, 390145, 439600, 445880, 557350, 624232, 780290, 891760, 1114700, 1248464, 1560580, 1950725, 2229400, 3121160, 3901450, 4458800, 6242320, 7802900, 15605800, 31211600]

約数ペア:

[(1, 31211600), (2, 15605800), (4, 7802900), (5, 6242320), (7, 4458800), (8, 3901450), (10, 3121160), (14, 2229400), (16, 1950725), (20, 1560580), (25, 1248464), (28, 1114700), (35, 891760), (40, 780290), (50, 624232), (56, 557350), (70, 445880), (71, 439600), (80, 390145), (100, 312116), (112, 278675), (140, 222940), (142, 219800), (157, 198800), (175, 178352), (200, 156058), (280, 111470), (284, 109900), (314, 99400), (350, 89176), (355, 87920), (400, 78029), (497, 62800), (560, 55735), (568, 54950), (628, 49700), (700, 44588), (710, 43960), (785, 39760), (994, 31400), (1099, 28400), (1136, 27475), (1256, 24850), (1400, 22294), (1420, 21980), (1570, 19880), (1775, 17584), (1988, 15700), (2198, 14200), (2485, 12560), (2512, 12425), (2800, 11147), (2840, 10990), (3140, 9940), (3550, 8792), (3925, 7952), (3976, 7850), (4396, 7100), (4970, 6280), (5495, 5680)]