20348600840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{829}}^1\times {\mathrm{36097}}^1$

素因数の和:36954

約数の個数: 64

約数和(自身を含む): 48537370800

約数和(自身を除く): 28188769960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 829, 1658, 3316, 4145, 6632, 8290, 14093, 16580, 28186, 33160, 36097, 56372, 70465, 72194, 112744, 140930, 144388, 180485, 281860, 288776, 360970, 563720, 613649, 721940, 1227298, 1443880, 2454596, 3068245, 4909192, 6136490, 12272980, 24545960, 29924413, 59848826, 119697652, 149622065, 239395304, 299244130, 508715021, 598488260, 1017430042, 1196976520, 2034860084, 2543575105, 4069720168, 5087150210, 10174300420, 20348600840]

約数ペア:

[(1, 20348600840), (2, 10174300420), (4, 5087150210), (5, 4069720168), (8, 2543575105), (10, 2034860084), (17, 1196976520), (20, 1017430042), (34, 598488260), (40, 508715021), (68, 299244130), (85, 239395304), (136, 149622065), (170, 119697652), (340, 59848826), (680, 29924413), (829, 24545960), (1658, 12272980), (3316, 6136490), (4145, 4909192), (6632, 3068245), (8290, 2454596), (14093, 1443880), (16580, 1227298), (28186, 721940), (33160, 613649), (36097, 563720), (56372, 360970), (70465, 288776), (72194, 281860), (112744, 180485), (140930, 144388)]