388518650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:400

約数の個数: 96

約数和(自身を含む): 828488640

約数和(自身を除く): 439969990

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 163, 190, 193, 247, 325, 326, 386, 475, 494, 650, 815, 950, 965, 1235, 1630, 1930, 2119, 2470, 2509, 3097, 3667, 4075, 4238, 4825, 5018, 6175, 6194, 7334, 8150, 9650, 10595, 12350, 12545, 15485, 18335, 21190, 25090, 30970, 31459, 36670, 40261, 47671, 52975, 62725, 62918, 77425, 80522, 91675, 95342, 105950, 125450, 154850, 157295, 183350, 201305, 238355, 314590, 402610, 408967, 476710, 597721, 786475, 817934, 1006525, 1191775, 1195442, 1572950, 2013050, 2044835, 2383550, 2988605, 4089670, 5977210, 7770373, 10224175, 14943025, 15540746, 20448350, 29886050, 38851865, 77703730, 194259325, 388518650]

約数ペア:

[(1, 388518650), (2, 194259325), (5, 77703730), (10, 38851865), (13, 29886050), (19, 20448350), (25, 15540746), (26, 14943025), (38, 10224175), (50, 7770373), (65, 5977210), (95, 4089670), (130, 2988605), (163, 2383550), (190, 2044835), (193, 2013050), (247, 1572950), (325, 1195442), (326, 1191775), (386, 1006525), (475, 817934), (494, 786475), (650, 597721), (815, 476710), (950, 408967), (965, 402610), (1235, 314590), (1630, 238355), (1930, 201305), (2119, 183350), (2470, 157295), (2509, 154850), (3097, 125450), (3667, 105950), (4075, 95342), (4238, 91675), (4825, 80522), (5018, 77425), (6175, 62918), (6194, 62725), (7334, 52975), (8150, 47671), (9650, 40261), (10595, 36670), (12350, 31459), (12545, 30970), (15485, 25090), (18335, 21190)]