28545440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{331}}^1$

素因数の和:371

約数の個数: 144

約数和(自身を含む): 85839264

約数和(自身を除く): 57293824

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 331, 352, 385, 392, 440, 490, 539, 560, 616, 662, 770, 784, 880, 980, 1078, 1120, 1232, 1324, 1540, 1568, 1655, 1760, 1960, 2156, 2317, 2464, 2648, 2695, 3080, 3310, 3641, 3920, 4312, 4634, 5296, 5390, 6160, 6620, 7282, 7840, 8624, 9268, 10592, 10780, 11585, 12320, 13240, 14564, 16219, 17248, 18205, 18536, 21560, 23170, 25487, 26480, 29128, 32438, 36410, 37072, 43120, 46340, 50974, 52960, 58256, 64876, 72820, 74144, 81095, 86240, 92680, 101948, 116512, 127435, 129752, 145640, 162190, 178409, 185360, 203896, 254870, 259504, 291280, 324380, 356818, 370720, 407792, 509740, 519008, 582560, 648760, 713636, 815584, 892045, 1019480, 1297520, 1427272, 1784090, 2038960, 2595040, 2854544, 3568180, 4077920, 5709088, 7136360, 14272720, 28545440]

約数ペア:

[(1, 28545440), (2, 14272720), (4, 7136360), (5, 5709088), (7, 4077920), (8, 3568180), (10, 2854544), (11, 2595040), (14, 2038960), (16, 1784090), (20, 1427272), (22, 1297520), (28, 1019480), (32, 892045), (35, 815584), (40, 713636), (44, 648760), (49, 582560), (55, 519008), (56, 509740), (70, 407792), (77, 370720), (80, 356818), (88, 324380), (98, 291280), (110, 259504), (112, 254870), (140, 203896), (154, 185360), (160, 178409), (176, 162190), (196, 145640), (220, 129752), (224, 127435), (245, 116512), (280, 101948), (308, 92680), (331, 86240), (352, 81095), (385, 74144), (392, 72820), (440, 64876), (490, 58256), (539, 52960), (560, 50974), (616, 46340), (662, 43120), (770, 37072), (784, 36410), (880, 32438), (980, 29128), (1078, 26480), (1120, 25487), (1232, 23170), (1324, 21560), (1540, 18536), (1568, 18205), (1655, 17248), (1760, 16219), (1960, 14564), (2156, 13240), (2317, 12320), (2464, 11585), (2648, 10780), (2695, 10592), (3080, 9268), (3310, 8624), (3641, 7840), (3920, 7282), (4312, 6620), (4634, 6160), (5296, 5390)]