20474370

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:206

約数の個数: 160

約数和(自身を含む): 66071808

約数和(自身を除く): 45597438

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 27, 30, 35, 42, 45, 46, 54, 63, 69, 70, 81, 90, 105, 115, 126, 135, 138, 157, 161, 162, 189, 207, 210, 230, 270, 314, 315, 322, 345, 378, 405, 414, 471, 483, 567, 621, 630, 690, 785, 805, 810, 942, 945, 966, 1035, 1099, 1134, 1242, 1413, 1449, 1570, 1610, 1863, 1890, 2070, 2198, 2355, 2415, 2826, 2835, 2898, 3105, 3297, 3611, 3726, 4239, 4347, 4710, 4830, 5495, 5670, 6210, 6594, 7065, 7222, 7245, 8478, 8694, 9315, 9891, 10833, 10990, 12717, 13041, 14130, 14490, 16485, 18055, 18630, 19782, 21195, 21666, 21735, 25277, 25434, 26082, 29673, 32499, 32970, 36110, 42390, 43470, 49455, 50554, 54165, 59346, 63585, 64998, 65205, 75831, 89019, 97497, 98910, 108330, 126385, 127170, 130410, 148365, 151662, 162495, 178038, 194994, 227493, 252770, 292491, 296730, 324990, 379155, 445095, 454986, 487485, 584982, 682479, 758310, 890190, 974970, 1137465, 1364958, 1462455, 2047437, 2274930, 2924910, 3412395, 4094874, 6824790, 10237185, 20474370]

約数ペア:

[(1, 20474370), (2, 10237185), (3, 6824790), (5, 4094874), (6, 3412395), (7, 2924910), (9, 2274930), (10, 2047437), (14, 1462455), (15, 1364958), (18, 1137465), (21, 974970), (23, 890190), (27, 758310), (30, 682479), (35, 584982), (42, 487485), (45, 454986), (46, 445095), (54, 379155), (63, 324990), (69, 296730), (70, 292491), (81, 252770), (90, 227493), (105, 194994), (115, 178038), (126, 162495), (135, 151662), (138, 148365), (157, 130410), (161, 127170), (162, 126385), (189, 108330), (207, 98910), (210, 97497), (230, 89019), (270, 75831), (314, 65205), (315, 64998), (322, 63585), (345, 59346), (378, 54165), (405, 50554), (414, 49455), (471, 43470), (483, 42390), (567, 36110), (621, 32970), (630, 32499), (690, 29673), (785, 26082), (805, 25434), (810, 25277), (942, 21735), (945, 21666), (966, 21195), (1035, 19782), (1099, 18630), (1134, 18055), (1242, 16485), (1413, 14490), (1449, 14130), (1570, 13041), (1610, 12717), (1863, 10990), (1890, 10833), (2070, 9891), (2198, 9315), (2355, 8694), (2415, 8478), (2826, 7245), (2835, 7222), (2898, 7065), (3105, 6594), (3297, 6210), (3611, 5670), (3726, 5495), (4239, 4830), (4347, 4710)]