28261584

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:545

約数の個数: 120

約数和(自身を含む): 88105472

約数和(自身を除く): 59843888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 36, 39, 48, 52, 62, 72, 78, 93, 104, 117, 124, 144, 156, 186, 208, 234, 248, 279, 312, 372, 403, 468, 487, 496, 558, 624, 744, 806, 936, 974, 1116, 1209, 1461, 1488, 1612, 1872, 1948, 2232, 2418, 2922, 3224, 3627, 3896, 4383, 4464, 4836, 5844, 6331, 6448, 7254, 7792, 8766, 9672, 11688, 12662, 14508, 15097, 17532, 18993, 19344, 23376, 25324, 29016, 30194, 35064, 37986, 45291, 50648, 56979, 58032, 60388, 70128, 75972, 90582, 101296, 113958, 120776, 135873, 151944, 181164, 196261, 227916, 241552, 271746, 303888, 362328, 392522, 455832, 543492, 588783, 724656, 785044, 911664, 1086984, 1177566, 1570088, 1766349, 2173968, 2355132, 3140176, 3532698, 4710264, 7065396, 9420528, 14130792, 28261584]

約数ペア:

[(1, 28261584), (2, 14130792), (3, 9420528), (4, 7065396), (6, 4710264), (8, 3532698), (9, 3140176), (12, 2355132), (13, 2173968), (16, 1766349), (18, 1570088), (24, 1177566), (26, 1086984), (31, 911664), (36, 785044), (39, 724656), (48, 588783), (52, 543492), (62, 455832), (72, 392522), (78, 362328), (93, 303888), (104, 271746), (117, 241552), (124, 227916), (144, 196261), (156, 181164), (186, 151944), (208, 135873), (234, 120776), (248, 113958), (279, 101296), (312, 90582), (372, 75972), (403, 70128), (468, 60388), (487, 58032), (496, 56979), (558, 50648), (624, 45291), (744, 37986), (806, 35064), (936, 30194), (974, 29016), (1116, 25324), (1209, 23376), (1461, 19344), (1488, 18993), (1612, 17532), (1872, 15097), (1948, 14508), (2232, 12662), (2418, 11688), (2922, 9672), (3224, 8766), (3627, 7792), (3896, 7254), (4383, 6448), (4464, 6331), (4836, 5844)]