261197370

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21821}}^1$

素因数の和:21860

約数の個数: 96

約数和(自身を含む): 817015680

約数和(自身を除く): 555818310

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 57, 63, 70, 90, 95, 105, 114, 126, 133, 171, 190, 210, 266, 285, 315, 342, 399, 570, 630, 665, 798, 855, 1197, 1330, 1710, 1995, 2394, 3990, 5985, 11970, 21821, 43642, 65463, 109105, 130926, 152747, 196389, 218210, 305494, 327315, 392778, 414599, 458241, 654630, 763735, 829198, 916482, 981945, 1243797, 1374723, 1527470, 1963890, 2072995, 2291205, 2487594, 2749446, 2902193, 3731391, 4145990, 4582410, 5804386, 6218985, 6873615, 7462782, 8706579, 12437970, 13747230, 14510965, 17413158, 18656955, 26119737, 29021930, 37313910, 43532895, 52239474, 87065790, 130598685, 261197370]

約数ペア:

[(1, 261197370), (2, 130598685), (3, 87065790), (5, 52239474), (6, 43532895), (7, 37313910), (9, 29021930), (10, 26119737), (14, 18656955), (15, 17413158), (18, 14510965), (19, 13747230), (21, 12437970), (30, 8706579), (35, 7462782), (38, 6873615), (42, 6218985), (45, 5804386), (57, 4582410), (63, 4145990), (70, 3731391), (90, 2902193), (95, 2749446), (105, 2487594), (114, 2291205), (126, 2072995), (133, 1963890), (171, 1527470), (190, 1374723), (210, 1243797), (266, 981945), (285, 916482), (315, 829198), (342, 763735), (399, 654630), (570, 458241), (630, 414599), (665, 392778), (798, 327315), (855, 305494), (1197, 218210), (1330, 196389), (1710, 152747), (1995, 130926), (2394, 109105), (3990, 65463), (5985, 43642), (11970, 21821)]