12181520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:109

約数の個数: 120

約数和(自身を含む): 33084936

約数和(自身を除く): 20903416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 53, 65, 68, 80, 85, 104, 106, 130, 136, 169, 170, 208, 212, 221, 260, 265, 272, 338, 340, 424, 442, 520, 530, 676, 680, 689, 845, 848, 884, 901, 1040, 1060, 1105, 1352, 1360, 1378, 1690, 1768, 1802, 2120, 2210, 2704, 2756, 2873, 3380, 3445, 3536, 3604, 4240, 4420, 4505, 5512, 5746, 6760, 6890, 7208, 8840, 8957, 9010, 11024, 11492, 11713, 13520, 13780, 14365, 14416, 17680, 17914, 18020, 22984, 23426, 27560, 28730, 35828, 36040, 44785, 45968, 46852, 55120, 57460, 58565, 71656, 72080, 89570, 93704, 114920, 117130, 143312, 152269, 179140, 187408, 229840, 234260, 304538, 358280, 468520, 609076, 716560, 761345, 937040, 1218152, 1522690, 2436304, 3045380, 6090760, 12181520]

約数ペア:

[(1, 12181520), (2, 6090760), (4, 3045380), (5, 2436304), (8, 1522690), (10, 1218152), (13, 937040), (16, 761345), (17, 716560), (20, 609076), (26, 468520), (34, 358280), (40, 304538), (52, 234260), (53, 229840), (65, 187408), (68, 179140), (80, 152269), (85, 143312), (104, 117130), (106, 114920), (130, 93704), (136, 89570), (169, 72080), (170, 71656), (208, 58565), (212, 57460), (221, 55120), (260, 46852), (265, 45968), (272, 44785), (338, 36040), (340, 35828), (424, 28730), (442, 27560), (520, 23426), (530, 22984), (676, 18020), (680, 17914), (689, 17680), (845, 14416), (848, 14365), (884, 13780), (901, 13520), (1040, 11713), (1060, 11492), (1105, 11024), (1352, 9010), (1360, 8957), (1378, 8840), (1690, 7208), (1768, 6890), (1802, 6760), (2120, 5746), (2210, 5512), (2704, 4505), (2756, 4420), (2873, 4240), (3380, 3604), (3445, 3536)]