81229720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1291}}^1$

素因数の和:1337

約数の個数: 96

約数和(自身を含む): 216513360

約数和(自身を除く): 135283640

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 121, 130, 143, 220, 242, 260, 286, 440, 484, 520, 572, 605, 715, 968, 1144, 1210, 1291, 1430, 1573, 2420, 2582, 2860, 3146, 4840, 5164, 5720, 6292, 6455, 7865, 10328, 12584, 12910, 14201, 15730, 16783, 25820, 28402, 31460, 33566, 51640, 56804, 62920, 67132, 71005, 83915, 113608, 134264, 142010, 156211, 167830, 184613, 284020, 312422, 335660, 369226, 568040, 624844, 671320, 738452, 781055, 923065, 1249688, 1476904, 1562110, 1846130, 2030743, 3124220, 3692260, 4061486, 6248440, 7384520, 8122972, 10153715, 16245944, 20307430, 40614860, 81229720]

約数ペア:

[(1, 81229720), (2, 40614860), (4, 20307430), (5, 16245944), (8, 10153715), (10, 8122972), (11, 7384520), (13, 6248440), (20, 4061486), (22, 3692260), (26, 3124220), (40, 2030743), (44, 1846130), (52, 1562110), (55, 1476904), (65, 1249688), (88, 923065), (104, 781055), (110, 738452), (121, 671320), (130, 624844), (143, 568040), (220, 369226), (242, 335660), (260, 312422), (286, 284020), (440, 184613), (484, 167830), (520, 156211), (572, 142010), (605, 134264), (715, 113608), (968, 83915), (1144, 71005), (1210, 67132), (1291, 62920), (1430, 56804), (1573, 51640), (2420, 33566), (2582, 31460), (2860, 28402), (3146, 25820), (4840, 16783), (5164, 15730), (5720, 14201), (6292, 12910), (6455, 12584), (7865, 10328)]