28281540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{233}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 96550272

約数和(自身を除く): 68268732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 233, 238, 255, 289, 340, 357, 420, 466, 476, 510, 578, 595, 699, 714, 867, 932, 1020, 1156, 1165, 1190, 1398, 1428, 1445, 1631, 1734, 1785, 2023, 2330, 2380, 2796, 2890, 3262, 3468, 3495, 3570, 3961, 4046, 4335, 4660, 4893, 5780, 6069, 6524, 6990, 7140, 7922, 8092, 8155, 8670, 9786, 10115, 11883, 12138, 13980, 15844, 16310, 17340, 19572, 19805, 20230, 23766, 24276, 24465, 27727, 30345, 32620, 39610, 40460, 47532, 48930, 55454, 59415, 60690, 67337, 79220, 83181, 97860, 110908, 118830, 121380, 134674, 138635, 166362, 202011, 237660, 269348, 277270, 332724, 336685, 404022, 415905, 471359, 554540, 673370, 808044, 831810, 942718, 1010055, 1346740, 1414077, 1663620, 1885436, 2020110, 2356795, 2828154, 4040220, 4713590, 5656308, 7070385, 9427180, 14140770, 28281540]

約数ペア:

[(1, 28281540), (2, 14140770), (3, 9427180), (4, 7070385), (5, 5656308), (6, 4713590), (7, 4040220), (10, 2828154), (12, 2356795), (14, 2020110), (15, 1885436), (17, 1663620), (20, 1414077), (21, 1346740), (28, 1010055), (30, 942718), (34, 831810), (35, 808044), (42, 673370), (51, 554540), (60, 471359), (68, 415905), (70, 404022), (84, 336685), (85, 332724), (102, 277270), (105, 269348), (119, 237660), (140, 202011), (170, 166362), (204, 138635), (210, 134674), (233, 121380), (238, 118830), (255, 110908), (289, 97860), (340, 83181), (357, 79220), (420, 67337), (466, 60690), (476, 59415), (510, 55454), (578, 48930), (595, 47532), (699, 40460), (714, 39610), (867, 32620), (932, 30345), (1020, 27727), (1156, 24465), (1165, 24276), (1190, 23766), (1398, 20230), (1428, 19805), (1445, 19572), (1631, 17340), (1734, 16310), (1785, 15844), (2023, 13980), (2330, 12138), (2380, 11883), (2796, 10115), (2890, 9786), (3262, 8670), (3468, 8155), (3495, 8092), (3570, 7922), (3961, 7140), (4046, 6990), (4335, 6524), (4660, 6069), (4893, 5780)]