81787920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10993}}^1$

素因数の和:11040

約数の個数: 80

約数和(自身を含む): 261745152

約数和(自身を除く): 179957232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 10993, 21986, 32979, 43972, 54965, 65958, 87944, 109930, 131916, 164895, 175888, 219860, 263832, 329790, 340783, 439720, 527664, 659580, 681566, 879440, 1022349, 1319160, 1363132, 1703915, 2044698, 2638320, 2726264, 3407830, 4089396, 5111745, 5452528, 6815660, 8178792, 10223490, 13631320, 16357584, 20446980, 27262640, 40893960, 81787920]

約数ペア:

[(1, 81787920), (2, 40893960), (3, 27262640), (4, 20446980), (5, 16357584), (6, 13631320), (8, 10223490), (10, 8178792), (12, 6815660), (15, 5452528), (16, 5111745), (20, 4089396), (24, 3407830), (30, 2726264), (31, 2638320), (40, 2044698), (48, 1703915), (60, 1363132), (62, 1319160), (80, 1022349), (93, 879440), (120, 681566), (124, 659580), (155, 527664), (186, 439720), (240, 340783), (248, 329790), (310, 263832), (372, 219860), (465, 175888), (496, 164895), (620, 131916), (744, 109930), (930, 87944), (1240, 65958), (1488, 54965), (1860, 43972), (2480, 32979), (3720, 21986), (7440, 10993)]