168705940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 420577920

約数和(自身を除く): 251871980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 37, 38, 52, 65, 71, 74, 76, 95, 130, 142, 148, 169, 185, 190, 247, 260, 284, 338, 355, 370, 380, 481, 494, 676, 703, 710, 740, 845, 923, 962, 988, 1235, 1349, 1406, 1420, 1690, 1846, 1924, 2405, 2470, 2627, 2698, 2812, 3211, 3380, 3515, 3692, 4615, 4810, 4940, 5254, 5396, 6253, 6422, 6745, 7030, 9139, 9230, 9620, 10508, 11999, 12506, 12844, 13135, 13490, 14060, 16055, 17537, 18278, 18460, 23998, 25012, 26270, 26980, 31265, 32110, 34151, 35074, 36556, 45695, 47996, 49913, 52540, 59995, 62530, 64220, 68302, 70148, 87685, 91390, 99826, 118807, 119990, 125060, 136604, 170755, 175370, 182780, 199652, 227981, 237614, 239980, 249565, 341510, 350740, 443963, 455962, 475228, 499130, 594035, 648869, 683020, 887926, 911924, 998260, 1139905, 1188070, 1297738, 1775852, 2219815, 2279810, 2376140, 2595476, 3244345, 4439630, 4559620, 6488690, 8435297, 8879260, 12977380, 16870594, 33741188, 42176485, 84352970, 168705940]

約数ペア:

[(1, 168705940), (2, 84352970), (4, 42176485), (5, 33741188), (10, 16870594), (13, 12977380), (19, 8879260), (20, 8435297), (26, 6488690), (37, 4559620), (38, 4439630), (52, 3244345), (65, 2595476), (71, 2376140), (74, 2279810), (76, 2219815), (95, 1775852), (130, 1297738), (142, 1188070), (148, 1139905), (169, 998260), (185, 911924), (190, 887926), (247, 683020), (260, 648869), (284, 594035), (338, 499130), (355, 475228), (370, 455962), (380, 443963), (481, 350740), (494, 341510), (676, 249565), (703, 239980), (710, 237614), (740, 227981), (845, 199652), (923, 182780), (962, 175370), (988, 170755), (1235, 136604), (1349, 125060), (1406, 119990), (1420, 118807), (1690, 99826), (1846, 91390), (1924, 87685), (2405, 70148), (2470, 68302), (2627, 64220), (2698, 62530), (2812, 59995), (3211, 52540), (3380, 49913), (3515, 47996), (3692, 45695), (4615, 36556), (4810, 35074), (4940, 34151), (5254, 32110), (5396, 31265), (6253, 26980), (6422, 26270), (6745, 25012), (7030, 23998), (9139, 18460), (9230, 18278), (9620, 17537), (10508, 16055), (11999, 14060), (12506, 13490), (12844, 13135)]