28679280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:463

約数の個数: 160

約数和(自身を含む): 104231424

約数和(自身を除く): 75552144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 43, 48, 56, 60, 70, 80, 84, 86, 105, 112, 120, 129, 140, 168, 172, 210, 215, 240, 258, 280, 301, 336, 344, 397, 420, 430, 516, 560, 602, 645, 688, 794, 840, 860, 903, 1032, 1191, 1204, 1290, 1505, 1588, 1680, 1720, 1806, 1985, 2064, 2382, 2408, 2580, 2779, 3010, 3176, 3440, 3612, 3970, 4515, 4764, 4816, 5160, 5558, 5955, 6020, 6352, 7224, 7940, 8337, 9030, 9528, 10320, 11116, 11910, 12040, 13895, 14448, 15880, 16674, 17071, 18060, 19056, 22232, 23820, 24080, 27790, 31760, 33348, 34142, 36120, 41685, 44464, 47640, 51213, 55580, 66696, 68284, 72240, 83370, 85355, 95280, 102426, 111160, 119497, 133392, 136568, 166740, 170710, 204852, 222320, 238994, 256065, 273136, 333480, 341420, 358491, 409704, 477988, 512130, 597485, 666960, 682840, 716982, 819408, 955976, 1024260, 1194970, 1365680, 1433964, 1792455, 1911952, 2048520, 2389940, 2867928, 3584910, 4097040, 4779880, 5735856, 7169820, 9559760, 14339640, 28679280]

約数ペア:

[(1, 28679280), (2, 14339640), (3, 9559760), (4, 7169820), (5, 5735856), (6, 4779880), (7, 4097040), (8, 3584910), (10, 2867928), (12, 2389940), (14, 2048520), (15, 1911952), (16, 1792455), (20, 1433964), (21, 1365680), (24, 1194970), (28, 1024260), (30, 955976), (35, 819408), (40, 716982), (42, 682840), (43, 666960), (48, 597485), (56, 512130), (60, 477988), (70, 409704), (80, 358491), (84, 341420), (86, 333480), (105, 273136), (112, 256065), (120, 238994), (129, 222320), (140, 204852), (168, 170710), (172, 166740), (210, 136568), (215, 133392), (240, 119497), (258, 111160), (280, 102426), (301, 95280), (336, 85355), (344, 83370), (397, 72240), (420, 68284), (430, 66696), (516, 55580), (560, 51213), (602, 47640), (645, 44464), (688, 41685), (794, 36120), (840, 34142), (860, 33348), (903, 31760), (1032, 27790), (1191, 24080), (1204, 23820), (1290, 22232), (1505, 19056), (1588, 18060), (1680, 17071), (1720, 16674), (1806, 15880), (1985, 14448), (2064, 13895), (2382, 12040), (2408, 11910), (2580, 11116), (2779, 10320), (3010, 9528), (3176, 9030), (3440, 8337), (3612, 7940), (3970, 7224), (4515, 6352), (4764, 6020), (4816, 5955), (5160, 5558)]