31472220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 95876928

約数和(自身を除く): 64404708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 157, 195, 257, 260, 314, 390, 471, 514, 628, 771, 780, 785, 942, 1028, 1285, 1542, 1570, 1884, 2041, 2355, 2570, 3084, 3140, 3341, 3855, 4082, 4710, 5140, 6123, 6682, 7710, 8164, 9420, 10023, 10205, 12246, 13364, 15420, 16705, 20046, 20410, 24492, 30615, 33410, 40092, 40349, 40820, 50115, 61230, 66820, 80698, 100230, 121047, 122460, 161396, 200460, 201745, 242094, 403490, 484188, 524537, 605235, 806980, 1049074, 1210470, 1573611, 2098148, 2420940, 2622685, 3147222, 5245370, 6294444, 7868055, 10490740, 15736110, 31472220]

約数ペア:

[(1, 31472220), (2, 15736110), (3, 10490740), (4, 7868055), (5, 6294444), (6, 5245370), (10, 3147222), (12, 2622685), (13, 2420940), (15, 2098148), (20, 1573611), (26, 1210470), (30, 1049074), (39, 806980), (52, 605235), (60, 524537), (65, 484188), (78, 403490), (130, 242094), (156, 201745), (157, 200460), (195, 161396), (257, 122460), (260, 121047), (314, 100230), (390, 80698), (471, 66820), (514, 61230), (628, 50115), (771, 40820), (780, 40349), (785, 40092), (942, 33410), (1028, 30615), (1285, 24492), (1542, 20410), (1570, 20046), (1884, 16705), (2041, 15420), (2355, 13364), (2570, 12246), (3084, 10205), (3140, 10023), (3341, 9420), (3855, 8164), (4082, 7710), (4710, 6682), (5140, 6123)]