28693420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 78140160

約数和(自身を除く): 49446740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 28, 35, 38, 46, 49, 67, 70, 76, 92, 95, 98, 115, 133, 134, 140, 161, 190, 196, 230, 245, 266, 268, 322, 335, 380, 437, 460, 469, 490, 532, 644, 665, 670, 805, 874, 931, 938, 980, 1127, 1273, 1330, 1340, 1541, 1610, 1748, 1862, 1876, 2185, 2254, 2345, 2546, 2660, 3059, 3082, 3220, 3283, 3724, 4370, 4508, 4655, 4690, 5092, 5635, 6118, 6164, 6365, 6566, 7705, 8740, 8911, 9310, 9380, 10787, 11270, 12236, 12730, 13132, 15295, 15410, 16415, 17822, 18620, 21413, 21574, 22540, 25460, 29279, 30590, 30820, 32830, 35644, 42826, 43148, 44555, 53935, 58558, 61180, 62377, 65660, 75509, 85652, 89110, 107065, 107870, 117116, 124754, 146395, 151018, 178220, 204953, 214130, 215740, 249508, 292790, 302036, 311885, 377545, 409906, 428260, 585580, 623770, 755090, 819812, 1024765, 1247540, 1434671, 1510180, 2049530, 2869342, 4099060, 5738684, 7173355, 14346710, 28693420]

約数ペア:

[(1, 28693420), (2, 14346710), (4, 7173355), (5, 5738684), (7, 4099060), (10, 2869342), (14, 2049530), (19, 1510180), (20, 1434671), (23, 1247540), (28, 1024765), (35, 819812), (38, 755090), (46, 623770), (49, 585580), (67, 428260), (70, 409906), (76, 377545), (92, 311885), (95, 302036), (98, 292790), (115, 249508), (133, 215740), (134, 214130), (140, 204953), (161, 178220), (190, 151018), (196, 146395), (230, 124754), (245, 117116), (266, 107870), (268, 107065), (322, 89110), (335, 85652), (380, 75509), (437, 65660), (460, 62377), (469, 61180), (490, 58558), (532, 53935), (644, 44555), (665, 43148), (670, 42826), (805, 35644), (874, 32830), (931, 30820), (938, 30590), (980, 29279), (1127, 25460), (1273, 22540), (1330, 21574), (1340, 21413), (1541, 18620), (1610, 17822), (1748, 16415), (1862, 15410), (1876, 15295), (2185, 13132), (2254, 12730), (2345, 12236), (2546, 11270), (2660, 10787), (3059, 9380), (3082, 9310), (3220, 8911), (3283, 8740), (3724, 7705), (4370, 6566), (4508, 6365), (4655, 6164), (4690, 6118), (5092, 5635)]