204821120

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:506

約数の個数: 128

約数和(自身を含む): 565488000

約数和(自身を除く): 360666880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 131, 140, 160, 224, 262, 280, 320, 349, 448, 524, 560, 640, 655, 698, 896, 917, 1048, 1120, 1310, 1396, 1745, 1834, 2096, 2240, 2443, 2620, 2792, 3490, 3668, 4192, 4480, 4585, 4886, 5240, 5584, 6980, 7336, 8384, 9170, 9772, 10480, 11168, 12215, 13960, 14672, 16768, 18340, 19544, 20960, 22336, 24430, 27920, 29344, 36680, 39088, 41920, 44672, 45719, 48860, 55840, 58688, 73360, 78176, 83840, 91438, 97720, 111680, 117376, 146720, 156352, 182876, 195440, 223360, 228595, 293440, 312704, 320033, 365752, 390880, 457190, 586880, 640066, 731504, 781760, 914380, 1280132, 1463008, 1563520, 1600165, 1828760, 2560264, 2926016, 3200330, 3657520, 5120528, 5852032, 6400660, 7315040, 10241056, 12801320, 14630080, 20482112, 25602640, 29260160, 40964224, 51205280, 102410560, 204821120]

約数ペア:

[(1, 204821120), (2, 102410560), (4, 51205280), (5, 40964224), (7, 29260160), (8, 25602640), (10, 20482112), (14, 14630080), (16, 12801320), (20, 10241056), (28, 7315040), (32, 6400660), (35, 5852032), (40, 5120528), (56, 3657520), (64, 3200330), (70, 2926016), (80, 2560264), (112, 1828760), (128, 1600165), (131, 1563520), (140, 1463008), (160, 1280132), (224, 914380), (262, 781760), (280, 731504), (320, 640066), (349, 586880), (448, 457190), (524, 390880), (560, 365752), (640, 320033), (655, 312704), (698, 293440), (896, 228595), (917, 223360), (1048, 195440), (1120, 182876), (1310, 156352), (1396, 146720), (1745, 117376), (1834, 111680), (2096, 97720), (2240, 91438), (2443, 83840), (2620, 78176), (2792, 73360), (3490, 58688), (3668, 55840), (4192, 48860), (4480, 45719), (4585, 44672), (4886, 41920), (5240, 39088), (5584, 36680), (6980, 29344), (7336, 27920), (8384, 24430), (9170, 22336), (9772, 20960), (10480, 19544), (11168, 18340), (12215, 16768), (13960, 14672)]