427711960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 128

約数和(自身を含む): 1082995200

約数和(自身を除く): 655283240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 157, 169, 248, 260, 310, 314, 338, 403, 520, 620, 628, 676, 785, 806, 845, 1240, 1256, 1352, 1570, 1612, 1690, 2015, 2041, 2197, 3140, 3224, 3380, 4030, 4082, 4394, 4867, 5239, 6280, 6760, 8060, 8164, 8788, 9734, 10205, 10478, 10985, 16120, 16328, 17576, 19468, 20410, 20956, 21970, 24335, 26195, 26533, 38936, 40820, 41912, 43940, 48670, 52390, 53066, 63271, 68107, 81640, 87880, 97340, 104780, 106132, 126542, 132665, 136214, 194680, 209560, 212264, 253084, 265330, 272428, 316355, 340535, 344929, 506168, 530660, 544856, 632710, 681070, 689858, 822523, 1061320, 1265420, 1362140, 1379716, 1645046, 1724645, 2530840, 2724280, 2759432, 3290092, 3449290, 4112615, 6580184, 6898580, 8225230, 10692799, 13797160, 16450460, 21385598, 32900920, 42771196, 53463995, 85542392, 106927990, 213855980, 427711960]

約数ペア:

[(1, 427711960), (2, 213855980), (4, 106927990), (5, 85542392), (8, 53463995), (10, 42771196), (13, 32900920), (20, 21385598), (26, 16450460), (31, 13797160), (40, 10692799), (52, 8225230), (62, 6898580), (65, 6580184), (104, 4112615), (124, 3449290), (130, 3290092), (155, 2759432), (157, 2724280), (169, 2530840), (248, 1724645), (260, 1645046), (310, 1379716), (314, 1362140), (338, 1265420), (403, 1061320), (520, 822523), (620, 689858), (628, 681070), (676, 632710), (785, 544856), (806, 530660), (845, 506168), (1240, 344929), (1256, 340535), (1352, 316355), (1570, 272428), (1612, 265330), (1690, 253084), (2015, 212264), (2041, 209560), (2197, 194680), (3140, 136214), (3224, 132665), (3380, 126542), (4030, 106132), (4082, 104780), (4394, 97340), (4867, 87880), (5239, 81640), (6280, 68107), (6760, 63271), (8060, 53066), (8164, 52390), (8788, 48670), (9734, 43940), (10205, 41912), (10478, 40820), (10985, 38936), (16120, 26533), (16328, 26195), (17576, 24335), (19468, 21970), (20410, 20956)]