19040840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5231}}^1$

素因数の和:5262

約数の個数: 64

約数和(自身を含む): 52738560

約数和(自身を除く): 33697720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5231, 10462, 20924, 26155, 36617, 41848, 52310, 68003, 73234, 104620, 136006, 146468, 183085, 209240, 272012, 292936, 340015, 366170, 476021, 544024, 680030, 732340, 952042, 1360060, 1464680, 1904084, 2380105, 2720120, 3808168, 4760210, 9520420, 19040840]

約数ペア:

[(1, 19040840), (2, 9520420), (4, 4760210), (5, 3808168), (7, 2720120), (8, 2380105), (10, 1904084), (13, 1464680), (14, 1360060), (20, 952042), (26, 732340), (28, 680030), (35, 544024), (40, 476021), (52, 366170), (56, 340015), (65, 292936), (70, 272012), (91, 209240), (104, 183085), (130, 146468), (140, 136006), (182, 104620), (260, 73234), (280, 68003), (364, 52310), (455, 41848), (520, 36617), (728, 26155), (910, 20924), (1820, 10462), (3640, 5231)]