21766780

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 56448000

約数和(自身を除く): 34681220

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 167, 190, 196, 245, 266, 334, 343, 380, 490, 532, 665, 668, 686, 835, 931, 980, 1169, 1330, 1372, 1670, 1715, 1862, 2338, 2660, 3173, 3340, 3430, 3724, 4655, 4676, 5845, 6346, 6517, 6860, 8183, 9310, 11690, 12692, 13034, 15865, 16366, 18620, 22211, 23380, 26068, 31730, 32585, 32732, 40915, 44422, 57281, 63460, 65170, 81830, 88844, 111055, 114562, 130340, 155477, 163660, 222110, 229124, 286405, 310954, 444220, 572810, 621908, 777385, 1088339, 1145620, 1554770, 2176678, 3109540, 4353356, 5441695, 10883390, 21766780]

約数ペア:

[(1, 21766780), (2, 10883390), (4, 5441695), (5, 4353356), (7, 3109540), (10, 2176678), (14, 1554770), (19, 1145620), (20, 1088339), (28, 777385), (35, 621908), (38, 572810), (49, 444220), (70, 310954), (76, 286405), (95, 229124), (98, 222110), (133, 163660), (140, 155477), (167, 130340), (190, 114562), (196, 111055), (245, 88844), (266, 81830), (334, 65170), (343, 63460), (380, 57281), (490, 44422), (532, 40915), (665, 32732), (668, 32585), (686, 31730), (835, 26068), (931, 23380), (980, 22211), (1169, 18620), (1330, 16366), (1372, 15865), (1670, 13034), (1715, 12692), (1862, 11690), (2338, 9310), (2660, 8183), (3173, 6860), (3340, 6517), (3430, 6346), (3724, 5845), (4655, 4676)]