16720760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 46170000

約数和(自身を除く): 29449240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 449, 490, 532, 665, 760, 898, 931, 980, 1064, 1330, 1796, 1862, 1960, 2245, 2660, 3143, 3592, 3724, 4490, 4655, 5320, 6286, 7448, 8531, 8980, 9310, 12572, 15715, 17062, 17960, 18620, 22001, 25144, 31430, 34124, 37240, 42655, 44002, 59717, 62860, 68248, 85310, 88004, 110005, 119434, 125720, 170620, 176008, 220010, 238868, 298585, 341240, 418019, 440020, 477736, 597170, 836038, 880040, 1194340, 1672076, 2090095, 2388680, 3344152, 4180190, 8360380, 16720760]

約数ペア:

[(1, 16720760), (2, 8360380), (4, 4180190), (5, 3344152), (7, 2388680), (8, 2090095), (10, 1672076), (14, 1194340), (19, 880040), (20, 836038), (28, 597170), (35, 477736), (38, 440020), (40, 418019), (49, 341240), (56, 298585), (70, 238868), (76, 220010), (95, 176008), (98, 170620), (133, 125720), (140, 119434), (152, 110005), (190, 88004), (196, 85310), (245, 68248), (266, 62860), (280, 59717), (380, 44002), (392, 42655), (449, 37240), (490, 34124), (532, 31430), (665, 25144), (760, 22001), (898, 18620), (931, 17960), (980, 17062), (1064, 15715), (1330, 12572), (1796, 9310), (1862, 8980), (1960, 8531), (2245, 7448), (2660, 6286), (3143, 5320), (3592, 4655), (3724, 4490)]