66680120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:457

約数の個数: 128

約数和(自身を含む): 180532800

約数和(自身を除く): 113852680

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 380, 397, 442, 494, 520, 646, 680, 760, 794, 884, 988, 1105, 1235, 1292, 1588, 1615, 1768, 1976, 1985, 2210, 2470, 2584, 3176, 3230, 3970, 4199, 4420, 4940, 5161, 6460, 6749, 7543, 7940, 8398, 8840, 9880, 10322, 12920, 13498, 15086, 15880, 16796, 20644, 20995, 25805, 26996, 30172, 33592, 33745, 37715, 41288, 41990, 51610, 53992, 60344, 67490, 75430, 83980, 87737, 98059, 103220, 128231, 134980, 150860, 167960, 175474, 196118, 206440, 256462, 269960, 301720, 350948, 392236, 438685, 490295, 512924, 641155, 701896, 784472, 877370, 980590, 1025848, 1282310, 1667003, 1754740, 1961180, 2564620, 3334006, 3509480, 3922360, 5129240, 6668012, 8335015, 13336024, 16670030, 33340060, 66680120]

約数ペア:

[(1, 66680120), (2, 33340060), (4, 16670030), (5, 13336024), (8, 8335015), (10, 6668012), (13, 5129240), (17, 3922360), (19, 3509480), (20, 3334006), (26, 2564620), (34, 1961180), (38, 1754740), (40, 1667003), (52, 1282310), (65, 1025848), (68, 980590), (76, 877370), (85, 784472), (95, 701896), (104, 641155), (130, 512924), (136, 490295), (152, 438685), (170, 392236), (190, 350948), (221, 301720), (247, 269960), (260, 256462), (323, 206440), (340, 196118), (380, 175474), (397, 167960), (442, 150860), (494, 134980), (520, 128231), (646, 103220), (680, 98059), (760, 87737), (794, 83980), (884, 75430), (988, 67490), (1105, 60344), (1235, 53992), (1292, 51610), (1588, 41990), (1615, 41288), (1768, 37715), (1976, 33745), (1985, 33592), (2210, 30172), (2470, 26996), (2584, 25805), (3176, 20995), (3230, 20644), (3970, 16796), (4199, 15880), (4420, 15086), (4940, 13498), (5161, 12920), (6460, 10322), (6749, 9880), (7543, 8840), (7940, 8398)]