139483880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{571}}^1$

素因数の和:810

約数の個数: 64

約数和(自身を含む): 326177280

約数和(自身を除く): 186693400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 197, 248, 310, 394, 571, 620, 788, 985, 1142, 1240, 1576, 1970, 2284, 2855, 3940, 4568, 5710, 6107, 7880, 11420, 12214, 17701, 22840, 24428, 30535, 35402, 48856, 61070, 70804, 88505, 112487, 122140, 141608, 177010, 224974, 244280, 354020, 449948, 562435, 708040, 899896, 1124870, 2249740, 3487097, 4499480, 6974194, 13948388, 17435485, 27896776, 34870970, 69741940, 139483880]

約数ペア:

[(1, 139483880), (2, 69741940), (4, 34870970), (5, 27896776), (8, 17435485), (10, 13948388), (20, 6974194), (31, 4499480), (40, 3487097), (62, 2249740), (124, 1124870), (155, 899896), (197, 708040), (248, 562435), (310, 449948), (394, 354020), (571, 244280), (620, 224974), (788, 177010), (985, 141608), (1142, 122140), (1240, 112487), (1576, 88505), (1970, 70804), (2284, 61070), (2855, 48856), (3940, 35402), (4568, 30535), (5710, 24428), (6107, 22840), (7880, 17701), (11420, 12214)]