247211820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{283}}^1$

素因数の和:532

約数の個数: 144

約数和(自身を含む): 788965632

約数和(自身を除く): 541753812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 211, 230, 276, 283, 345, 414, 422, 460, 566, 633, 690, 828, 844, 849, 1035, 1055, 1132, 1266, 1380, 1415, 1698, 1899, 2070, 2110, 2532, 2547, 2830, 3165, 3396, 3798, 4140, 4220, 4245, 4853, 5094, 5660, 6330, 6509, 7596, 8490, 9495, 9706, 10188, 12660, 12735, 13018, 14559, 16980, 18990, 19412, 19527, 24265, 25470, 26036, 29118, 32545, 37980, 39054, 43677, 48530, 50940, 58236, 58581, 59713, 65090, 72795, 78108, 87354, 97060, 97635, 117162, 119426, 130180, 145590, 174708, 179139, 195270, 218385, 234324, 238852, 291180, 292905, 298565, 358278, 390540, 436770, 537417, 585810, 597130, 716556, 873540, 895695, 1074834, 1171620, 1194260, 1373399, 1791390, 2149668, 2687085, 2746798, 3582780, 4120197, 5374170, 5493596, 6866995, 8240394, 10748340, 12360591, 13733990, 16480788, 20600985, 24721182, 27467980, 41201970, 49442364, 61802955, 82403940, 123605910, 247211820]

約数ペア:

[(1, 247211820), (2, 123605910), (3, 82403940), (4, 61802955), (5, 49442364), (6, 41201970), (9, 27467980), (10, 24721182), (12, 20600985), (15, 16480788), (18, 13733990), (20, 12360591), (23, 10748340), (30, 8240394), (36, 6866995), (45, 5493596), (46, 5374170), (60, 4120197), (69, 3582780), (90, 2746798), (92, 2687085), (115, 2149668), (138, 1791390), (180, 1373399), (207, 1194260), (211, 1171620), (230, 1074834), (276, 895695), (283, 873540), (345, 716556), (414, 597130), (422, 585810), (460, 537417), (566, 436770), (633, 390540), (690, 358278), (828, 298565), (844, 292905), (849, 291180), (1035, 238852), (1055, 234324), (1132, 218385), (1266, 195270), (1380, 179139), (1415, 174708), (1698, 145590), (1899, 130180), (2070, 119426), (2110, 117162), (2532, 97635), (2547, 97060), (2830, 87354), (3165, 78108), (3396, 72795), (3798, 65090), (4140, 59713), (4220, 58581), (4245, 58236), (4853, 50940), (5094, 48530), (5660, 43677), (6330, 39054), (6509, 37980), (7596, 32545), (8490, 29118), (9495, 26036), (9706, 25470), (10188, 24265), (12660, 19527), (12735, 19412), (13018, 18990), (14559, 16980)]