19890340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3079}}^1$

素因数の和:3124

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 26679260

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3079, 3230, 6158, 6460, 12316, 15395, 30790, 52343, 58501, 61580, 104686, 117002, 209372, 234004, 261715, 292505, 523430, 585010, 994517, 1046860, 1170020, 1989034, 3978068, 4972585, 9945170, 19890340]

約数ペア:

[(1, 19890340), (2, 9945170), (4, 4972585), (5, 3978068), (10, 1989034), (17, 1170020), (19, 1046860), (20, 994517), (34, 585010), (38, 523430), (68, 292505), (76, 261715), (85, 234004), (95, 209372), (170, 117002), (190, 104686), (323, 61580), (340, 58501), (380, 52343), (646, 30790), (1292, 15395), (1615, 12316), (3079, 6460), (3230, 6158)]