80617980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:619

約数の個数: 96

約数和(自身を含む): 236113920

約数和(自身を除く): 155495940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 89, 93, 124, 155, 178, 186, 267, 310, 356, 372, 445, 465, 487, 534, 620, 890, 930, 974, 1068, 1335, 1461, 1780, 1860, 1948, 2435, 2670, 2759, 2922, 4870, 5340, 5518, 5844, 7305, 8277, 9740, 11036, 13795, 14610, 15097, 16554, 27590, 29220, 30194, 33108, 41385, 43343, 45291, 55180, 60388, 75485, 82770, 86686, 90582, 130029, 150970, 165540, 173372, 181164, 216715, 226455, 260058, 301940, 433430, 452910, 520116, 650145, 866860, 905820, 1300290, 1343633, 2600580, 2687266, 4030899, 5374532, 6718165, 8061798, 13436330, 16123596, 20154495, 26872660, 40308990, 80617980]

約数ペア:

[(1, 80617980), (2, 40308990), (3, 26872660), (4, 20154495), (5, 16123596), (6, 13436330), (10, 8061798), (12, 6718165), (15, 5374532), (20, 4030899), (30, 2687266), (31, 2600580), (60, 1343633), (62, 1300290), (89, 905820), (93, 866860), (124, 650145), (155, 520116), (178, 452910), (186, 433430), (267, 301940), (310, 260058), (356, 226455), (372, 216715), (445, 181164), (465, 173372), (487, 165540), (534, 150970), (620, 130029), (890, 90582), (930, 86686), (974, 82770), (1068, 75485), (1335, 60388), (1461, 55180), (1780, 45291), (1860, 43343), (1948, 41385), (2435, 33108), (2670, 30194), (2759, 29220), (2922, 27590), (4870, 16554), (5340, 15097), (5518, 14610), (5844, 13795), (7305, 11036), (8277, 9740)]