312142720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15733}}^1$

素因数の和:15783

約数の個数: 64

約数和(自身を含む): 770336640

約数和(自身を除く): 458193920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 15733, 19840, 31466, 62932, 78665, 125864, 157330, 251728, 314660, 487723, 503456, 629320, 975446, 1006912, 1258640, 1950892, 2013824, 2438615, 2517280, 3901784, 4877230, 5034560, 7803568, 9754460, 10069120, 15607136, 19508920, 31214272, 39017840, 62428544, 78035680, 156071360, 312142720]

約数ペア:

[(1, 312142720), (2, 156071360), (4, 78035680), (5, 62428544), (8, 39017840), (10, 31214272), (16, 19508920), (20, 15607136), (31, 10069120), (32, 9754460), (40, 7803568), (62, 5034560), (64, 4877230), (80, 3901784), (124, 2517280), (128, 2438615), (155, 2013824), (160, 1950892), (248, 1258640), (310, 1006912), (320, 975446), (496, 629320), (620, 503456), (640, 487723), (992, 314660), (1240, 251728), (1984, 157330), (2480, 125864), (3968, 78665), (4960, 62932), (9920, 31466), (15733, 19840)]