31881990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{967}}^1$

素因数の和:1141

約数の個数: 64

約数和(自身を含む): 88095744

約数和(自身を除く): 56213754

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 157, 210, 314, 471, 785, 942, 967, 1099, 1570, 1934, 2198, 2355, 2901, 3297, 4710, 4835, 5495, 5802, 6594, 6769, 9670, 10990, 13538, 14505, 16485, 20307, 29010, 32970, 33845, 40614, 67690, 101535, 151819, 203070, 303638, 455457, 759095, 910914, 1062733, 1518190, 2125466, 2277285, 3188199, 4554570, 5313665, 6376398, 10627330, 15940995, 31881990]

約数ペア:

[(1, 31881990), (2, 15940995), (3, 10627330), (5, 6376398), (6, 5313665), (7, 4554570), (10, 3188199), (14, 2277285), (15, 2125466), (21, 1518190), (30, 1062733), (35, 910914), (42, 759095), (70, 455457), (105, 303638), (157, 203070), (210, 151819), (314, 101535), (471, 67690), (785, 40614), (942, 33845), (967, 32970), (1099, 29010), (1570, 20307), (1934, 16485), (2198, 14505), (2355, 13538), (2901, 10990), (3297, 9670), (4710, 6769), (4835, 6594), (5495, 5802)]