15930280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 38361600

約数和(自身を除く): 22431320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 443, 580, 620, 886, 899, 1160, 1240, 1772, 1798, 2215, 3544, 3596, 4430, 4495, 7192, 8860, 8990, 12847, 13733, 17720, 17980, 25694, 27466, 35960, 51388, 54932, 64235, 68665, 102776, 109864, 128470, 137330, 256940, 274660, 398257, 513880, 549320, 796514, 1593028, 1991285, 3186056, 3982570, 7965140, 15930280]

約数ペア:

[(1, 15930280), (2, 7965140), (4, 3982570), (5, 3186056), (8, 1991285), (10, 1593028), (20, 796514), (29, 549320), (31, 513880), (40, 398257), (58, 274660), (62, 256940), (116, 137330), (124, 128470), (145, 109864), (155, 102776), (232, 68665), (248, 64235), (290, 54932), (310, 51388), (443, 35960), (580, 27466), (620, 25694), (886, 17980), (899, 17720), (1160, 13733), (1240, 12847), (1772, 8990), (1798, 8860), (2215, 7192), (3544, 4495), (3596, 4430)]