390243720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{112139}}^1$

素因数の和:112182

約数の個数: 64

約数和(自身を含む): 1211112000

約数和(自身を除く): 820868280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 580, 696, 870, 1160, 1740, 3480, 112139, 224278, 336417, 448556, 560695, 672834, 897112, 1121390, 1345668, 1682085, 2242780, 2691336, 3252031, 3364170, 4485560, 6504062, 6728340, 9756093, 13008124, 13456680, 16260155, 19512186, 26016248, 32520310, 39024372, 48780465, 65040620, 78048744, 97560930, 130081240, 195121860, 390243720]

約数ペア:

[(1, 390243720), (2, 195121860), (3, 130081240), (4, 97560930), (5, 78048744), (6, 65040620), (8, 48780465), (10, 39024372), (12, 32520310), (15, 26016248), (20, 19512186), (24, 16260155), (29, 13456680), (30, 13008124), (40, 9756093), (58, 6728340), (60, 6504062), (87, 4485560), (116, 3364170), (120, 3252031), (145, 2691336), (174, 2242780), (232, 1682085), (290, 1345668), (348, 1121390), (435, 897112), (580, 672834), (696, 560695), (870, 448556), (1160, 336417), (1740, 224278), (3480, 112139)]