66720920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:273

約数の個数: 128

約数和(自身を含む): 184757760

約数和(自身を除く): 118036840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 107, 119, 131, 136, 140, 170, 214, 238, 262, 280, 340, 428, 476, 524, 535, 595, 655, 680, 749, 856, 917, 952, 1048, 1070, 1190, 1310, 1498, 1819, 1834, 2140, 2227, 2380, 2620, 2996, 3638, 3668, 3745, 4280, 4454, 4585, 4760, 5240, 5992, 7276, 7336, 7490, 8908, 9095, 9170, 11135, 12733, 14017, 14552, 14980, 15589, 17816, 18190, 18340, 22270, 25466, 28034, 29960, 31178, 36380, 36680, 44540, 50932, 56068, 62356, 63665, 70085, 72760, 77945, 89080, 98119, 101864, 112136, 124712, 127330, 140170, 155890, 196238, 238289, 254660, 280340, 311780, 392476, 476578, 490595, 509320, 560680, 623560, 784952, 953156, 981190, 1191445, 1668023, 1906312, 1962380, 2382890, 3336046, 3924760, 4765780, 6672092, 8340115, 9531560, 13344184, 16680230, 33360460, 66720920]

約数ペア:

[(1, 66720920), (2, 33360460), (4, 16680230), (5, 13344184), (7, 9531560), (8, 8340115), (10, 6672092), (14, 4765780), (17, 3924760), (20, 3336046), (28, 2382890), (34, 1962380), (35, 1906312), (40, 1668023), (56, 1191445), (68, 981190), (70, 953156), (85, 784952), (107, 623560), (119, 560680), (131, 509320), (136, 490595), (140, 476578), (170, 392476), (214, 311780), (238, 280340), (262, 254660), (280, 238289), (340, 196238), (428, 155890), (476, 140170), (524, 127330), (535, 124712), (595, 112136), (655, 101864), (680, 98119), (749, 89080), (856, 77945), (917, 72760), (952, 70085), (1048, 63665), (1070, 62356), (1190, 56068), (1310, 50932), (1498, 44540), (1819, 36680), (1834, 36380), (2140, 31178), (2227, 29960), (2380, 28034), (2620, 25466), (2996, 22270), (3638, 18340), (3668, 18190), (3745, 17816), (4280, 15589), (4454, 14980), (4585, 14552), (4760, 14017), (5240, 12733), (5992, 11135), (7276, 9170), (7336, 9095), (7490, 8908)]