305291720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{246203}}^1$

素因数の和:246245

約数の個数: 32

約数和(自身を含む): 709067520

約数和(自身を除く): 403775800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 246203, 492406, 984812, 1231015, 1969624, 2462030, 4924060, 7632293, 9848120, 15264586, 30529172, 38161465, 61058344, 76322930, 152645860, 305291720]

約数ペア:

[(1, 305291720), (2, 152645860), (4, 76322930), (5, 61058344), (8, 38161465), (10, 30529172), (20, 15264586), (31, 9848120), (40, 7632293), (62, 4924060), (124, 2462030), (155, 1969624), (248, 1231015), (310, 984812), (620, 492406), (1240, 246203)]