19842680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3469}}^1$

素因数の和:3504

約数の個数: 64

約数和(自身を含む): 52466400

約数和(自身を除く): 32623720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3469, 5720, 6938, 13876, 17345, 27752, 34690, 38159, 45097, 69380, 76318, 90194, 138760, 152636, 180388, 190795, 225485, 305272, 360776, 381590, 450970, 496067, 763180, 901940, 992134, 1526360, 1803880, 1984268, 2480335, 3968536, 4960670, 9921340, 19842680]

約数ペア:

[(1, 19842680), (2, 9921340), (4, 4960670), (5, 3968536), (8, 2480335), (10, 1984268), (11, 1803880), (13, 1526360), (20, 992134), (22, 901940), (26, 763180), (40, 496067), (44, 450970), (52, 381590), (55, 360776), (65, 305272), (88, 225485), (104, 190795), (110, 180388), (130, 152636), (143, 138760), (220, 90194), (260, 76318), (286, 69380), (440, 45097), (520, 38159), (572, 34690), (715, 27752), (1144, 17345), (1430, 13876), (2860, 6938), (3469, 5720)]