25403560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{997}}^1$

素因数の和:1035

約数の個数: 96

約数和(自身を含む): 71676360

約数和(自身を除く): 46272800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 997, 1274, 1820, 1960, 1994, 2548, 3185, 3640, 3988, 4985, 5096, 6370, 6979, 7976, 9970, 12740, 12961, 13958, 19940, 25480, 25922, 27916, 34895, 39880, 48853, 51844, 55832, 64805, 69790, 90727, 97706, 103688, 129610, 139580, 181454, 195412, 244265, 259220, 279160, 362908, 390824, 453635, 488530, 518440, 635089, 725816, 907270, 977060, 1270178, 1814540, 1954120, 2540356, 3175445, 3629080, 5080712, 6350890, 12701780, 25403560]

約数ペア:

[(1, 25403560), (2, 12701780), (4, 6350890), (5, 5080712), (7, 3629080), (8, 3175445), (10, 2540356), (13, 1954120), (14, 1814540), (20, 1270178), (26, 977060), (28, 907270), (35, 725816), (40, 635089), (49, 518440), (52, 488530), (56, 453635), (65, 390824), (70, 362908), (91, 279160), (98, 259220), (104, 244265), (130, 195412), (140, 181454), (182, 139580), (196, 129610), (245, 103688), (260, 97706), (280, 90727), (364, 69790), (392, 64805), (455, 55832), (490, 51844), (520, 48853), (637, 39880), (728, 34895), (910, 27916), (980, 25922), (997, 25480), (1274, 19940), (1820, 13958), (1960, 12961), (1994, 12740), (2548, 9970), (3185, 7976), (3640, 6979), (3988, 6370), (4985, 5096)]