21374080

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1$

素因数の和:406

約数の個数: 128

約数和(自身を含む): 63060480

約数和(自身を除く): 41686400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 367, 416, 448, 455, 520, 560, 640, 728, 734, 832, 896, 910, 1040, 1120, 1456, 1468, 1664, 1820, 1835, 2080, 2240, 2569, 2912, 2936, 3640, 3670, 4160, 4480, 4771, 5138, 5824, 5872, 7280, 7340, 8320, 9542, 10276, 11648, 11744, 12845, 14560, 14680, 19084, 20552, 23488, 23855, 25690, 29120, 29360, 33397, 38168, 41104, 46976, 47710, 51380, 58240, 58720, 66794, 76336, 82208, 95420, 102760, 117440, 133588, 152672, 164416, 166985, 190840, 205520, 234880, 267176, 305344, 328832, 333970, 381680, 411040, 534352, 610688, 667940, 763360, 822080, 1068704, 1335880, 1526720, 1644160, 2137408, 2671760, 3053440, 4274816, 5343520, 10687040, 21374080]

約数ペア:

[(1, 21374080), (2, 10687040), (4, 5343520), (5, 4274816), (7, 3053440), (8, 2671760), (10, 2137408), (13, 1644160), (14, 1526720), (16, 1335880), (20, 1068704), (26, 822080), (28, 763360), (32, 667940), (35, 610688), (40, 534352), (52, 411040), (56, 381680), (64, 333970), (65, 328832), (70, 305344), (80, 267176), (91, 234880), (104, 205520), (112, 190840), (128, 166985), (130, 164416), (140, 152672), (160, 133588), (182, 117440), (208, 102760), (224, 95420), (260, 82208), (280, 76336), (320, 66794), (364, 58720), (367, 58240), (416, 51380), (448, 47710), (455, 46976), (520, 41104), (560, 38168), (640, 33397), (728, 29360), (734, 29120), (832, 25690), (896, 23855), (910, 23488), (1040, 20552), (1120, 19084), (1456, 14680), (1468, 14560), (1664, 12845), (1820, 11744), (1835, 11648), (2080, 10276), (2240, 9542), (2569, 8320), (2912, 7340), (2936, 7280), (3640, 5872), (3670, 5824), (4160, 5138), (4480, 4771)]