19212040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1487}}^1$

素因数の和:1534

約数の個数: 64

約数和(自身を含む): 48211200

約数和(自身を除く): 28999160

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1487, 1615, 2584, 2974, 3230, 5948, 6460, 7435, 11896, 12920, 14870, 25279, 28253, 29740, 50558, 56506, 59480, 101116, 113012, 126395, 141265, 202232, 226024, 252790, 282530, 480301, 505580, 565060, 960602, 1011160, 1130120, 1921204, 2401505, 3842408, 4803010, 9606020, 19212040]

約数ペア:

[(1, 19212040), (2, 9606020), (4, 4803010), (5, 3842408), (8, 2401505), (10, 1921204), (17, 1130120), (19, 1011160), (20, 960602), (34, 565060), (38, 505580), (40, 480301), (68, 282530), (76, 252790), (85, 226024), (95, 202232), (136, 141265), (152, 126395), (170, 113012), (190, 101116), (323, 59480), (340, 56506), (380, 50558), (646, 29740), (680, 28253), (760, 25279), (1292, 14870), (1487, 12920), (1615, 11896), (2584, 7435), (2974, 6460), (3230, 5948)]