640184640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{39227}}^1$

素因数の和:39264

約数の個数: 112

約数和(自身を含む): 2152204992

約数和(自身を除く): 1512020352

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 408, 480, 510, 544, 680, 816, 960, 1020, 1088, 1360, 1632, 2040, 2720, 3264, 4080, 5440, 8160, 16320, 39227, 78454, 117681, 156908, 196135, 235362, 313816, 392270, 470724, 588405, 627632, 666859, 784540, 941448, 1176810, 1255264, 1333718, 1569080, 1882896, 2000577, 2353620, 2510528, 2667436, 3138160, 3334295, 3765792, 4001154, 4707240, 5334872, 6276320, 6668590, 7531584, 8002308, 9414480, 10002885, 10669744, 12552640, 13337180, 16004616, 18828960, 20005770, 21339488, 26674360, 32009232, 37657920, 40011540, 42678976, 53348720, 64018464, 80023080, 106697440, 128036928, 160046160, 213394880, 320092320, 640184640]

約数ペア:

[(1, 640184640), (2, 320092320), (3, 213394880), (4, 160046160), (5, 128036928), (6, 106697440), (8, 80023080), (10, 64018464), (12, 53348720), (15, 42678976), (16, 40011540), (17, 37657920), (20, 32009232), (24, 26674360), (30, 21339488), (32, 20005770), (34, 18828960), (40, 16004616), (48, 13337180), (51, 12552640), (60, 10669744), (64, 10002885), (68, 9414480), (80, 8002308), (85, 7531584), (96, 6668590), (102, 6276320), (120, 5334872), (136, 4707240), (160, 4001154), (170, 3765792), (192, 3334295), (204, 3138160), (240, 2667436), (255, 2510528), (272, 2353620), (320, 2000577), (340, 1882896), (408, 1569080), (480, 1333718), (510, 1255264), (544, 1176810), (680, 941448), (816, 784540), (960, 666859), (1020, 627632), (1088, 588405), (1360, 470724), (1632, 392270), (2040, 313816), (2720, 235362), (3264, 196135), (4080, 156908), (5440, 117681), (8160, 78454), (16320, 39227)]