207907720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{383}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 481904640

約数和(自身を除く): 273996920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 331, 383, 410, 662, 766, 820, 1324, 1532, 1640, 1655, 1915, 2648, 3064, 3310, 3830, 6620, 7660, 13240, 13571, 15320, 15703, 27142, 31406, 54284, 62812, 67855, 78515, 108568, 125624, 126773, 135710, 157030, 253546, 271420, 314060, 507092, 542840, 628120, 633865, 1014184, 1267730, 2535460, 5070920, 5197693, 10395386, 20790772, 25988465, 41581544, 51976930, 103953860, 207907720]

約数ペア:

[(1, 207907720), (2, 103953860), (4, 51976930), (5, 41581544), (8, 25988465), (10, 20790772), (20, 10395386), (40, 5197693), (41, 5070920), (82, 2535460), (164, 1267730), (205, 1014184), (328, 633865), (331, 628120), (383, 542840), (410, 507092), (662, 314060), (766, 271420), (820, 253546), (1324, 157030), (1532, 135710), (1640, 126773), (1655, 125624), (1915, 108568), (2648, 78515), (3064, 67855), (3310, 62812), (3830, 54284), (6620, 31406), (7660, 27142), (13240, 15703), (13571, 15320)]