80938520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5021}}^1$

素因数の和:5076

約数の個数: 64

約数和(自身を含む): 202487040

約数和(自身を除く): 121548520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 5021, 8060, 10042, 16120, 20084, 25105, 40168, 50210, 65273, 100420, 130546, 155651, 200840, 261092, 311302, 326365, 522184, 622604, 652730, 778255, 1245208, 1305460, 1556510, 2023463, 2610920, 3113020, 4046926, 6226040, 8093852, 10117315, 16187704, 20234630, 40469260, 80938520]

約数ペア:

[(1, 80938520), (2, 40469260), (4, 20234630), (5, 16187704), (8, 10117315), (10, 8093852), (13, 6226040), (20, 4046926), (26, 3113020), (31, 2610920), (40, 2023463), (52, 1556510), (62, 1305460), (65, 1245208), (104, 778255), (124, 652730), (130, 622604), (155, 522184), (248, 326365), (260, 311302), (310, 261092), (403, 200840), (520, 155651), (620, 130546), (806, 100420), (1240, 65273), (1612, 50210), (2015, 40168), (3224, 25105), (4030, 20084), (5021, 16120), (8060, 10042)]