77921760

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{3313}}^1$

素因数の和:3345

約数の個数: 144

約数和(自身を含む): 285613776

約数和(自身を除く): 207692016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3313, 3360, 3920, 4704, 5880, 6626, 7840, 9939, 11760, 13252, 16565, 19878, 23191, 23520, 26504, 33130, 39756, 46382, 49695, 53008, 66260, 69573, 79512, 92764, 99390, 106016, 115955, 132520, 139146, 159024, 162337, 185528, 198780, 231910, 265040, 278292, 318048, 324674, 347865, 371056, 397560, 463820, 487011, 530080, 556584, 649348, 695730, 742112, 795120, 811685, 927640, 974022, 1113168, 1298696, 1391460, 1590240, 1623370, 1855280, 1948044, 2226336, 2435055, 2597392, 2782920, 3246740, 3710560, 3896088, 4870110, 5194784, 5565840, 6493480, 7792176, 9740220, 11131680, 12986960, 15584352, 19480440, 25973920, 38960880, 77921760]

約数ペア:

[(1, 77921760), (2, 38960880), (3, 25973920), (4, 19480440), (5, 15584352), (6, 12986960), (7, 11131680), (8, 9740220), (10, 7792176), (12, 6493480), (14, 5565840), (15, 5194784), (16, 4870110), (20, 3896088), (21, 3710560), (24, 3246740), (28, 2782920), (30, 2597392), (32, 2435055), (35, 2226336), (40, 1948044), (42, 1855280), (48, 1623370), (49, 1590240), (56, 1391460), (60, 1298696), (70, 1113168), (80, 974022), (84, 927640), (96, 811685), (98, 795120), (105, 742112), (112, 695730), (120, 649348), (140, 556584), (147, 530080), (160, 487011), (168, 463820), (196, 397560), (210, 371056), (224, 347865), (240, 324674), (245, 318048), (280, 278292), (294, 265040), (336, 231910), (392, 198780), (420, 185528), (480, 162337), (490, 159024), (560, 139146), (588, 132520), (672, 115955), (735, 106016), (784, 99390), (840, 92764), (980, 79512), (1120, 69573), (1176, 66260), (1470, 53008), (1568, 49695), (1680, 46382), (1960, 39756), (2352, 33130), (2940, 26504), (3313, 23520), (3360, 23191), (3920, 19878), (4704, 16565), (5880, 13252), (6626, 11760), (7840, 9939)]