216991920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31177}}^1$

素因数の和:31222

約数の個数: 80

約数和(自身を含む): 695892960

約数和(自身を除く): 478901040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 3480, 6960, 31177, 62354, 93531, 124708, 155885, 187062, 249416, 311770, 374124, 467655, 498832, 623540, 748248, 904133, 935310, 1247080, 1496496, 1808266, 1870620, 2494160, 2712399, 3616532, 3741240, 4520665, 5424798, 7233064, 7482480, 9041330, 10849596, 13561995, 14466128, 18082660, 21699192, 27123990, 36165320, 43398384, 54247980, 72330640, 108495960, 216991920]

約数ペア:

[(1, 216991920), (2, 108495960), (3, 72330640), (4, 54247980), (5, 43398384), (6, 36165320), (8, 27123990), (10, 21699192), (12, 18082660), (15, 14466128), (16, 13561995), (20, 10849596), (24, 9041330), (29, 7482480), (30, 7233064), (40, 5424798), (48, 4520665), (58, 3741240), (60, 3616532), (80, 2712399), (87, 2494160), (116, 1870620), (120, 1808266), (145, 1496496), (174, 1247080), (232, 935310), (240, 904133), (290, 748248), (348, 623540), (435, 498832), (464, 467655), (580, 374124), (696, 311770), (870, 249416), (1160, 187062), (1392, 155885), (1740, 124708), (2320, 93531), (3480, 62354), (6960, 31177)]