31481640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:731

約数の個数: 96

約数和(自身を含む): 103151880

約数和(自身を除く): 71670240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 157, 180, 314, 360, 471, 557, 628, 785, 942, 1114, 1256, 1413, 1570, 1671, 1884, 2228, 2355, 2785, 2826, 3140, 3342, 3768, 4456, 4710, 5013, 5570, 5652, 6280, 6684, 7065, 8355, 9420, 10026, 11140, 11304, 13368, 14130, 16710, 18840, 20052, 22280, 25065, 28260, 33420, 40104, 50130, 56520, 66840, 87449, 100260, 174898, 200520, 262347, 349796, 437245, 524694, 699592, 787041, 874490, 1049388, 1311735, 1574082, 1748980, 2098776, 2623470, 3148164, 3497960, 3935205, 5246940, 6296328, 7870410, 10493880, 15740820, 31481640]

約数ペア:

[(1, 31481640), (2, 15740820), (3, 10493880), (4, 7870410), (5, 6296328), (6, 5246940), (8, 3935205), (9, 3497960), (10, 3148164), (12, 2623470), (15, 2098776), (18, 1748980), (20, 1574082), (24, 1311735), (30, 1049388), (36, 874490), (40, 787041), (45, 699592), (60, 524694), (72, 437245), (90, 349796), (120, 262347), (157, 200520), (180, 174898), (314, 100260), (360, 87449), (471, 66840), (557, 56520), (628, 50130), (785, 40104), (942, 33420), (1114, 28260), (1256, 25065), (1413, 22280), (1570, 20052), (1671, 18840), (1884, 16710), (2228, 14130), (2355, 13368), (2785, 11304), (2826, 11140), (3140, 10026), (3342, 9420), (3768, 8355), (4456, 7065), (4710, 6684), (5013, 6280), (5570, 5652)]