311428480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1427}}^1$

素因数の和:1488

約数の個数: 128

約数和(自身を含む): 838978560

約数和(自身を除く): 527550080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 310, 320, 341, 352, 440, 496, 620, 640, 682, 704, 880, 992, 1240, 1364, 1408, 1427, 1705, 1760, 1984, 2480, 2728, 2854, 3410, 3520, 3968, 4960, 5456, 5708, 6820, 7040, 7135, 9920, 10912, 11416, 13640, 14270, 15697, 19840, 21824, 22832, 27280, 28540, 31394, 43648, 44237, 45664, 54560, 57080, 62788, 78485, 88474, 91328, 109120, 114160, 125576, 156970, 176948, 182656, 218240, 221185, 228320, 251152, 313940, 353896, 442370, 456640, 486607, 502304, 627880, 707792, 884740, 913280, 973214, 1004608, 1255760, 1415584, 1769480, 1946428, 2009216, 2433035, 2511520, 2831168, 3538960, 3892856, 4866070, 5023040, 5662336, 7077920, 7785712, 9732140, 10046080, 14155840, 15571424, 19464280, 28311680, 31142848, 38928560, 62285696, 77857120, 155714240, 311428480]

約数ペア:

[(1, 311428480), (2, 155714240), (4, 77857120), (5, 62285696), (8, 38928560), (10, 31142848), (11, 28311680), (16, 19464280), (20, 15571424), (22, 14155840), (31, 10046080), (32, 9732140), (40, 7785712), (44, 7077920), (55, 5662336), (62, 5023040), (64, 4866070), (80, 3892856), (88, 3538960), (110, 2831168), (124, 2511520), (128, 2433035), (155, 2009216), (160, 1946428), (176, 1769480), (220, 1415584), (248, 1255760), (310, 1004608), (320, 973214), (341, 913280), (352, 884740), (440, 707792), (496, 627880), (620, 502304), (640, 486607), (682, 456640), (704, 442370), (880, 353896), (992, 313940), (1240, 251152), (1364, 228320), (1408, 221185), (1427, 218240), (1705, 182656), (1760, 176948), (1984, 156970), (2480, 125576), (2728, 114160), (2854, 109120), (3410, 91328), (3520, 88474), (3968, 78485), (4960, 62788), (5456, 57080), (5708, 54560), (6820, 45664), (7040, 44237), (7135, 43648), (9920, 31394), (10912, 28540), (11416, 27280), (13640, 22832), (14270, 21824), (15697, 19840)]