6660040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 15966720

約数和(自身を除く): 9306680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 131, 155, 164, 205, 248, 262, 310, 328, 410, 524, 620, 655, 820, 1048, 1240, 1271, 1310, 1640, 2542, 2620, 4061, 5084, 5240, 5371, 6355, 8122, 10168, 10742, 12710, 16244, 20305, 21484, 25420, 26855, 32488, 40610, 42968, 50840, 53710, 81220, 107420, 162440, 166501, 214840, 333002, 666004, 832505, 1332008, 1665010, 3330020, 6660040]

約数ペア:

[(1, 6660040), (2, 3330020), (4, 1665010), (5, 1332008), (8, 832505), (10, 666004), (20, 333002), (31, 214840), (40, 166501), (41, 162440), (62, 107420), (82, 81220), (124, 53710), (131, 50840), (155, 42968), (164, 40610), (205, 32488), (248, 26855), (262, 25420), (310, 21484), (328, 20305), (410, 16244), (524, 12710), (620, 10742), (655, 10168), (820, 8122), (1048, 6355), (1240, 5371), (1271, 5240), (1310, 5084), (1640, 4061), (2542, 2620)]