81786780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{487}}^1$

素因数の和:816

約数の個数: 96

約数和(自身を含む): 255790080

約数和(自身を除く): 174003300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 311, 487, 540, 622, 933, 974, 1244, 1461, 1555, 1866, 1948, 2435, 2799, 2922, 3110, 3732, 4383, 4665, 4870, 5598, 5844, 6220, 7305, 8397, 8766, 9330, 9740, 11196, 13149, 13995, 14610, 16794, 17532, 18660, 21915, 26298, 27990, 29220, 33588, 41985, 43830, 52596, 55980, 65745, 83970, 87660, 131490, 151457, 167940, 262980, 302914, 454371, 605828, 757285, 908742, 1363113, 1514570, 1817484, 2271855, 2726226, 3029140, 4089339, 4543710, 5452452, 6815565, 8178678, 9087420, 13631130, 16357356, 20446695, 27262260, 40893390, 81786780]

約数ペア:

[(1, 81786780), (2, 40893390), (3, 27262260), (4, 20446695), (5, 16357356), (6, 13631130), (9, 9087420), (10, 8178678), (12, 6815565), (15, 5452452), (18, 4543710), (20, 4089339), (27, 3029140), (30, 2726226), (36, 2271855), (45, 1817484), (54, 1514570), (60, 1363113), (90, 908742), (108, 757285), (135, 605828), (180, 454371), (270, 302914), (311, 262980), (487, 167940), (540, 151457), (622, 131490), (933, 87660), (974, 83970), (1244, 65745), (1461, 55980), (1555, 52596), (1866, 43830), (1948, 41985), (2435, 33588), (2799, 29220), (2922, 27990), (3110, 26298), (3732, 21915), (4383, 18660), (4665, 17532), (4870, 16794), (5598, 14610), (5844, 13995), (6220, 13149), (7305, 11196), (8397, 9740), (8766, 9330)]