209260380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{653}}^1$

素因数の和:788

約数の個数: 144

約数和(自身を含む): 688897440

約数和(自身を除く): 479637060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 109, 140, 147, 196, 210, 218, 245, 294, 327, 420, 436, 490, 545, 588, 653, 654, 735, 763, 980, 1090, 1306, 1308, 1470, 1526, 1635, 1959, 2180, 2289, 2612, 2940, 3052, 3265, 3270, 3815, 3918, 4571, 4578, 5341, 6530, 6540, 7630, 7836, 9142, 9156, 9795, 10682, 11445, 13060, 13713, 15260, 16023, 18284, 19590, 21364, 22855, 22890, 26705, 27426, 31997, 32046, 39180, 45710, 45780, 53410, 54852, 63994, 64092, 68565, 71177, 80115, 91420, 95991, 106820, 127988, 137130, 142354, 159985, 160230, 191982, 213531, 274260, 284708, 319970, 320460, 355885, 383964, 427062, 479955, 498239, 639940, 711770, 854124, 959910, 996478, 1067655, 1423540, 1494717, 1919820, 1992956, 2135310, 2491195, 2989434, 3487673, 4270620, 4982390, 5978868, 6975346, 7473585, 9964780, 10463019, 13950692, 14947170, 17438365, 20926038, 29894340, 34876730, 41852076, 52315095, 69753460, 104630190, 209260380]

約数ペア:

[(1, 209260380), (2, 104630190), (3, 69753460), (4, 52315095), (5, 41852076), (6, 34876730), (7, 29894340), (10, 20926038), (12, 17438365), (14, 14947170), (15, 13950692), (20, 10463019), (21, 9964780), (28, 7473585), (30, 6975346), (35, 5978868), (42, 4982390), (49, 4270620), (60, 3487673), (70, 2989434), (84, 2491195), (98, 2135310), (105, 1992956), (109, 1919820), (140, 1494717), (147, 1423540), (196, 1067655), (210, 996478), (218, 959910), (245, 854124), (294, 711770), (327, 639940), (420, 498239), (436, 479955), (490, 427062), (545, 383964), (588, 355885), (653, 320460), (654, 319970), (735, 284708), (763, 274260), (980, 213531), (1090, 191982), (1306, 160230), (1308, 159985), (1470, 142354), (1526, 137130), (1635, 127988), (1959, 106820), (2180, 95991), (2289, 91420), (2612, 80115), (2940, 71177), (3052, 68565), (3265, 64092), (3270, 63994), (3815, 54852), (3918, 53410), (4571, 45780), (4578, 45710), (5341, 39180), (6530, 32046), (6540, 31997), (7630, 27426), (7836, 26705), (9142, 22890), (9156, 22855), (9795, 21364), (10682, 19590), (11445, 18284), (13060, 16023), (13713, 15260)]