38431980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2399}}^1$

素因数の和:2503

約数の個数: 72

約数和(自身を含む): 117936000

約数和(自身を除く): 79504020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2399, 2670, 3204, 4005, 4798, 5340, 7197, 8010, 9596, 11995, 14394, 16020, 21591, 23990, 28788, 35985, 43182, 47980, 71970, 86364, 107955, 143940, 213511, 215910, 427022, 431820, 640533, 854044, 1067555, 1281066, 1921599, 2135110, 2562132, 3202665, 3843198, 4270220, 6405330, 7686396, 9607995, 12810660, 19215990, 38431980]

約数ペア:

[(1, 38431980), (2, 19215990), (3, 12810660), (4, 9607995), (5, 7686396), (6, 6405330), (9, 4270220), (10, 3843198), (12, 3202665), (15, 2562132), (18, 2135110), (20, 1921599), (30, 1281066), (36, 1067555), (45, 854044), (60, 640533), (89, 431820), (90, 427022), (178, 215910), (180, 213511), (267, 143940), (356, 107955), (445, 86364), (534, 71970), (801, 47980), (890, 43182), (1068, 35985), (1335, 28788), (1602, 23990), (1780, 21591), (2399, 16020), (2670, 14394), (3204, 11995), (4005, 9596), (4798, 8010), (5340, 7197)]