208490280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:555

約数の個数: 128

約数和(自身を含む): 652579200

約数和(自身を除く): 444088920

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, 181, 232, 290, 331, 348, 362, 435, 543, 580, 662, 696, 724, 870, 905, 993, 1086, 1160, 1324, 1448, 1655, 1740, 1810, 1986, 2172, 2648, 2715, 3310, 3480, 3620, 3972, 4344, 4965, 5249, 5430, 6620, 7240, 7944, 9599, 9930, 10498, 10860, 13240, 15747, 19198, 19860, 20996, 21720, 26245, 28797, 31494, 38396, 39720, 41992, 47995, 52490, 57594, 59911, 62988, 76792, 78735, 95990, 104980, 115188, 119822, 125976, 143985, 157470, 179733, 191980, 209960, 230376, 239644, 287970, 299555, 314940, 359466, 383960, 479288, 575940, 599110, 629880, 718932, 898665, 1151880, 1198220, 1437864, 1737419, 1797330, 2396440, 3474838, 3594660, 5212257, 6949676, 7189320, 8687095, 10424514, 13899352, 17374190, 20849028, 26061285, 34748380, 41698056, 52122570, 69496760, 104245140, 208490280]

約数ペア:

[(1, 208490280), (2, 104245140), (3, 69496760), (4, 52122570), (5, 41698056), (6, 34748380), (8, 26061285), (10, 20849028), (12, 17374190), (15, 13899352), (20, 10424514), (24, 8687095), (29, 7189320), (30, 6949676), (40, 5212257), (58, 3594660), (60, 3474838), (87, 2396440), (116, 1797330), (120, 1737419), (145, 1437864), (174, 1198220), (181, 1151880), (232, 898665), (290, 718932), (331, 629880), (348, 599110), (362, 575940), (435, 479288), (543, 383960), (580, 359466), (662, 314940), (696, 299555), (724, 287970), (870, 239644), (905, 230376), (993, 209960), (1086, 191980), (1160, 179733), (1324, 157470), (1448, 143985), (1655, 125976), (1740, 119822), (1810, 115188), (1986, 104980), (2172, 95990), (2648, 78735), (2715, 76792), (3310, 62988), (3480, 59911), (3620, 57594), (3972, 52490), (4344, 47995), (4965, 41992), (5249, 39720), (5430, 38396), (6620, 31494), (7240, 28797), (7944, 26245), (9599, 21720), (9930, 20996), (10498, 19860), (10860, 19198), (13240, 15747)]