19134440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1242

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 28765720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1187, 1240, 1612, 2015, 2374, 3224, 4030, 4748, 5935, 8060, 9496, 11870, 15431, 16120, 23740, 30862, 36797, 47480, 61724, 73594, 77155, 123448, 147188, 154310, 183985, 294376, 308620, 367970, 478361, 617240, 735940, 956722, 1471880, 1913444, 2391805, 3826888, 4783610, 9567220, 19134440]

約数ペア:

[(1, 19134440), (2, 9567220), (4, 4783610), (5, 3826888), (8, 2391805), (10, 1913444), (13, 1471880), (20, 956722), (26, 735940), (31, 617240), (40, 478361), (52, 367970), (62, 308620), (65, 294376), (104, 183985), (124, 154310), (130, 147188), (155, 123448), (248, 77155), (260, 73594), (310, 61724), (403, 47480), (520, 36797), (620, 30862), (806, 23740), (1187, 16120), (1240, 15431), (1612, 11870), (2015, 9496), (2374, 8060), (3224, 5935), (4030, 4748)]