208031220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1499}}^1$

素因数の和:1774

約数の個数: 96

約数和(自身を含む): 650160000

約数和(自身を除く): 442128780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 257, 270, 514, 540, 771, 1028, 1285, 1499, 1542, 2313, 2570, 2998, 3084, 3855, 4497, 4626, 5140, 5996, 6939, 7495, 7710, 8994, 9252, 11565, 13491, 13878, 14990, 15420, 17988, 22485, 23130, 26982, 27756, 29980, 34695, 40473, 44970, 46260, 53964, 67455, 69390, 80946, 89940, 134910, 138780, 161892, 202365, 269820, 385243, 404730, 770486, 809460, 1155729, 1540972, 1926215, 2311458, 3467187, 3852430, 4622916, 5778645, 6934374, 7704860, 10401561, 11557290, 13868748, 17335935, 20803122, 23114580, 34671870, 41606244, 52007805, 69343740, 104015610, 208031220]

約数ペア:

[(1, 208031220), (2, 104015610), (3, 69343740), (4, 52007805), (5, 41606244), (6, 34671870), (9, 23114580), (10, 20803122), (12, 17335935), (15, 13868748), (18, 11557290), (20, 10401561), (27, 7704860), (30, 6934374), (36, 5778645), (45, 4622916), (54, 3852430), (60, 3467187), (90, 2311458), (108, 1926215), (135, 1540972), (180, 1155729), (257, 809460), (270, 770486), (514, 404730), (540, 385243), (771, 269820), (1028, 202365), (1285, 161892), (1499, 138780), (1542, 134910), (2313, 89940), (2570, 80946), (2998, 69390), (3084, 67455), (3855, 53964), (4497, 46260), (4626, 44970), (5140, 40473), (5996, 34695), (6939, 29980), (7495, 27756), (7710, 26982), (8994, 23130), (9252, 22485), (11565, 17988), (13491, 15420), (13878, 14990)]