28090440

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:252

約数の個数: 192

約数和(自身を含む): 106479360

約数和(自身を除く): 78388920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 71, 72, 84, 90, 105, 120, 126, 140, 142, 157, 168, 180, 210, 213, 252, 280, 284, 314, 315, 355, 360, 420, 426, 471, 497, 504, 568, 628, 630, 639, 710, 785, 840, 852, 942, 994, 1065, 1099, 1256, 1260, 1278, 1413, 1420, 1491, 1570, 1704, 1884, 1988, 2130, 2198, 2355, 2485, 2520, 2556, 2826, 2840, 2982, 3140, 3195, 3297, 3768, 3976, 4260, 4396, 4473, 4710, 4970, 5112, 5495, 5652, 5964, 6280, 6390, 6594, 7065, 7455, 8520, 8792, 8946, 9420, 9891, 9940, 10990, 11147, 11304, 11928, 12780, 13188, 14130, 14910, 16485, 17892, 18840, 19782, 19880, 21980, 22294, 22365, 25560, 26376, 28260, 29820, 32970, 33441, 35784, 39564, 43960, 44588, 44730, 49455, 55735, 56520, 59640, 65940, 66882, 78029, 79128, 89176, 89460, 98910, 100323, 111470, 131880, 133764, 156058, 167205, 178920, 197820, 200646, 222940, 234087, 267528, 312116, 334410, 390145, 395640, 401292, 445880, 468174, 501615, 624232, 668820, 702261, 780290, 802584, 936348, 1003230, 1170435, 1337640, 1404522, 1560580, 1872696, 2006460, 2340870, 2809044, 3121160, 3511305, 4012920, 4681740, 5618088, 7022610, 9363480, 14045220, 28090440]

約数ペア:

[(1, 28090440), (2, 14045220), (3, 9363480), (4, 7022610), (5, 5618088), (6, 4681740), (7, 4012920), (8, 3511305), (9, 3121160), (10, 2809044), (12, 2340870), (14, 2006460), (15, 1872696), (18, 1560580), (20, 1404522), (21, 1337640), (24, 1170435), (28, 1003230), (30, 936348), (35, 802584), (36, 780290), (40, 702261), (42, 668820), (45, 624232), (56, 501615), (60, 468174), (63, 445880), (70, 401292), (71, 395640), (72, 390145), (84, 334410), (90, 312116), (105, 267528), (120, 234087), (126, 222940), (140, 200646), (142, 197820), (157, 178920), (168, 167205), (180, 156058), (210, 133764), (213, 131880), (252, 111470), (280, 100323), (284, 98910), (314, 89460), (315, 89176), (355, 79128), (360, 78029), (420, 66882), (426, 65940), (471, 59640), (497, 56520), (504, 55735), (568, 49455), (628, 44730), (630, 44588), (639, 43960), (710, 39564), (785, 35784), (840, 33441), (852, 32970), (942, 29820), (994, 28260), (1065, 26376), (1099, 25560), (1256, 22365), (1260, 22294), (1278, 21980), (1413, 19880), (1420, 19782), (1491, 18840), (1570, 17892), (1704, 16485), (1884, 14910), (1988, 14130), (2130, 13188), (2198, 12780), (2355, 11928), (2485, 11304), (2520, 11147), (2556, 10990), (2826, 9940), (2840, 9891), (2982, 9420), (3140, 8946), (3195, 8792), (3297, 8520), (3768, 7455), (3976, 7065), (4260, 6594), (4396, 6390), (4473, 6280), (4710, 5964), (4970, 5652), (5112, 5495)]