68151640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 173560320

約数和(自身を除く): 105408680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 53, 61, 62, 68, 85, 106, 122, 124, 136, 155, 170, 212, 244, 248, 265, 305, 310, 340, 424, 488, 527, 530, 610, 620, 680, 901, 1037, 1054, 1060, 1220, 1240, 1643, 1802, 1891, 2074, 2108, 2120, 2440, 2635, 3233, 3286, 3604, 3782, 4148, 4216, 4505, 5185, 5270, 6466, 6572, 7208, 7564, 8215, 8296, 9010, 9455, 10370, 10540, 12932, 13144, 15128, 16165, 16430, 18020, 18910, 20740, 21080, 25864, 27931, 32147, 32330, 32860, 36040, 37820, 41480, 54961, 55862, 64294, 64660, 65720, 75640, 100223, 109922, 111724, 128588, 129320, 139655, 160735, 200446, 219844, 223448, 257176, 274805, 279310, 321470, 400892, 439688, 501115, 549610, 558620, 642940, 801784, 1002230, 1099220, 1117240, 1285880, 1703791, 2004460, 2198440, 3407582, 4008920, 6815164, 8518955, 13630328, 17037910, 34075820, 68151640]

約数ペア:

[(1, 68151640), (2, 34075820), (4, 17037910), (5, 13630328), (8, 8518955), (10, 6815164), (17, 4008920), (20, 3407582), (31, 2198440), (34, 2004460), (40, 1703791), (53, 1285880), (61, 1117240), (62, 1099220), (68, 1002230), (85, 801784), (106, 642940), (122, 558620), (124, 549610), (136, 501115), (155, 439688), (170, 400892), (212, 321470), (244, 279310), (248, 274805), (265, 257176), (305, 223448), (310, 219844), (340, 200446), (424, 160735), (488, 139655), (527, 129320), (530, 128588), (610, 111724), (620, 109922), (680, 100223), (901, 75640), (1037, 65720), (1054, 64660), (1060, 64294), (1220, 55862), (1240, 54961), (1643, 41480), (1802, 37820), (1891, 36040), (2074, 32860), (2108, 32330), (2120, 32147), (2440, 27931), (2635, 25864), (3233, 21080), (3286, 20740), (3604, 18910), (3782, 18020), (4148, 16430), (4216, 16165), (4505, 15128), (5185, 13144), (5270, 12932), (6466, 10540), (6572, 10370), (7208, 9455), (7564, 9010), (8215, 8296)]