631960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:116

約数の個数: 64

約数和(自身を含む): 1696320

約数和(自身を除く): 1064360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 61, 70, 74, 122, 140, 148, 185, 244, 259, 280, 296, 305, 370, 427, 488, 518, 610, 740, 854, 1036, 1220, 1295, 1480, 1708, 2072, 2135, 2257, 2440, 2590, 3416, 4270, 4514, 5180, 8540, 9028, 10360, 11285, 15799, 17080, 18056, 22570, 31598, 45140, 63196, 78995, 90280, 126392, 157990, 315980, 631960]

約数ペア:

[(1, 631960), (2, 315980), (4, 157990), (5, 126392), (7, 90280), (8, 78995), (10, 63196), (14, 45140), (20, 31598), (28, 22570), (35, 18056), (37, 17080), (40, 15799), (56, 11285), (61, 10360), (70, 9028), (74, 8540), (122, 5180), (140, 4514), (148, 4270), (185, 3416), (244, 2590), (259, 2440), (280, 2257), (296, 2135), (305, 2072), (370, 1708), (427, 1480), (488, 1295), (518, 1220), (610, 1036), (740, 854)]