208506520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{1039}}^1$

素因数の和:1252

約数の個数: 64

約数和(自身を含む): 488592000

約数和(自身を除く): 280085480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 173, 232, 290, 346, 580, 692, 865, 1039, 1160, 1384, 1730, 2078, 3460, 4156, 5017, 5195, 6920, 8312, 10034, 10390, 20068, 20780, 25085, 30131, 40136, 41560, 50170, 60262, 100340, 120524, 150655, 179747, 200680, 241048, 301310, 359494, 602620, 718988, 898735, 1205240, 1437976, 1797470, 3594940, 5212663, 7189880, 10425326, 20850652, 26063315, 41701304, 52126630, 104253260, 208506520]

約数ペア:

[(1, 208506520), (2, 104253260), (4, 52126630), (5, 41701304), (8, 26063315), (10, 20850652), (20, 10425326), (29, 7189880), (40, 5212663), (58, 3594940), (116, 1797470), (145, 1437976), (173, 1205240), (232, 898735), (290, 718988), (346, 602620), (580, 359494), (692, 301310), (865, 241048), (1039, 200680), (1160, 179747), (1384, 150655), (1730, 120524), (2078, 100340), (3460, 60262), (4156, 50170), (5017, 41560), (5195, 40136), (6920, 30131), (8312, 25085), (10034, 20780), (10390, 20068)]