15279280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 80

約数和(自身を含む): 37640448

約数和(自身を除く): 22361168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 61, 62, 80, 101, 122, 124, 155, 202, 244, 248, 305, 310, 404, 488, 496, 505, 610, 620, 808, 976, 1010, 1220, 1240, 1616, 1891, 2020, 2440, 2480, 3131, 3782, 4040, 4880, 6161, 6262, 7564, 8080, 9455, 12322, 12524, 15128, 15655, 18910, 24644, 25048, 30256, 30805, 31310, 37820, 49288, 50096, 61610, 62620, 75640, 98576, 123220, 125240, 151280, 190991, 246440, 250480, 381982, 492880, 763964, 954955, 1527928, 1909910, 3055856, 3819820, 7639640, 15279280]

約数ペア:

[(1, 15279280), (2, 7639640), (4, 3819820), (5, 3055856), (8, 1909910), (10, 1527928), (16, 954955), (20, 763964), (31, 492880), (40, 381982), (61, 250480), (62, 246440), (80, 190991), (101, 151280), (122, 125240), (124, 123220), (155, 98576), (202, 75640), (244, 62620), (248, 61610), (305, 50096), (310, 49288), (404, 37820), (488, 31310), (496, 30805), (505, 30256), (610, 25048), (620, 24644), (808, 18910), (976, 15655), (1010, 15128), (1220, 12524), (1240, 12322), (1616, 9455), (1891, 8080), (2020, 7564), (2440, 6262), (2480, 6161), (3131, 4880), (3782, 4040)]