209321820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:1001

約数の個数: 120

約数和(自身を含む): 661635744

約数和(自身を除く): 452313924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 157, 162, 180, 270, 314, 324, 405, 471, 540, 628, 785, 810, 823, 942, 1413, 1570, 1620, 1646, 1884, 2355, 2469, 2826, 3140, 3292, 4115, 4239, 4710, 4938, 5652, 7065, 7407, 8230, 8478, 9420, 9876, 12345, 12717, 14130, 14814, 16460, 16956, 21195, 22221, 24690, 25434, 28260, 29628, 37035, 42390, 44442, 49380, 50868, 63585, 66663, 74070, 84780, 88884, 111105, 127170, 129211, 133326, 148140, 222210, 254340, 258422, 266652, 333315, 387633, 444420, 516844, 646055, 666630, 775266, 1162899, 1292110, 1333260, 1550532, 1938165, 2325798, 2584220, 3488697, 3876330, 4651596, 5814495, 6977394, 7752660, 10466091, 11628990, 13954788, 17443485, 20932182, 23257980, 34886970, 41864364, 52330455, 69773940, 104660910, 209321820]

約数ペア:

[(1, 209321820), (2, 104660910), (3, 69773940), (4, 52330455), (5, 41864364), (6, 34886970), (9, 23257980), (10, 20932182), (12, 17443485), (15, 13954788), (18, 11628990), (20, 10466091), (27, 7752660), (30, 6977394), (36, 5814495), (45, 4651596), (54, 3876330), (60, 3488697), (81, 2584220), (90, 2325798), (108, 1938165), (135, 1550532), (157, 1333260), (162, 1292110), (180, 1162899), (270, 775266), (314, 666630), (324, 646055), (405, 516844), (471, 444420), (540, 387633), (628, 333315), (785, 266652), (810, 258422), (823, 254340), (942, 222210), (1413, 148140), (1570, 133326), (1620, 129211), (1646, 127170), (1884, 111105), (2355, 88884), (2469, 84780), (2826, 74070), (3140, 66663), (3292, 63585), (4115, 50868), (4239, 49380), (4710, 44442), (4938, 42390), (5652, 37035), (7065, 29628), (7407, 28260), (8230, 25434), (8478, 24690), (9420, 22221), (9876, 21195), (12345, 16956), (12717, 16460), (14130, 14814)]