81609840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8719}}^1$

素因数の和:8751

約数の個数: 120

約数和(自身を含む): 295189440

約数和(自身を除く): 213579600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 8719, 9360, 17438, 26157, 34876, 43595, 52314, 69752, 78471, 87190, 104628, 113347, 130785, 139504, 156942, 174380, 209256, 226694, 261570, 313884, 340041, 348760, 392355, 418512, 453388, 523140, 566735, 627768, 680082, 697520, 784710, 906776, 1020123, 1046280, 1133470, 1255536, 1360164, 1569420, 1700205, 1813552, 2040246, 2092560, 2266940, 2720328, 3138840, 3400410, 4080492, 4533880, 5100615, 5440656, 6277680, 6800820, 8160984, 9067760, 10201230, 13601640, 16321968, 20402460, 27203280, 40804920, 81609840]

約数ペア:

[(1, 81609840), (2, 40804920), (3, 27203280), (4, 20402460), (5, 16321968), (6, 13601640), (8, 10201230), (9, 9067760), (10, 8160984), (12, 6800820), (13, 6277680), (15, 5440656), (16, 5100615), (18, 4533880), (20, 4080492), (24, 3400410), (26, 3138840), (30, 2720328), (36, 2266940), (39, 2092560), (40, 2040246), (45, 1813552), (48, 1700205), (52, 1569420), (60, 1360164), (65, 1255536), (72, 1133470), (78, 1046280), (80, 1020123), (90, 906776), (104, 784710), (117, 697520), (120, 680082), (130, 627768), (144, 566735), (156, 523140), (180, 453388), (195, 418512), (208, 392355), (234, 348760), (240, 340041), (260, 313884), (312, 261570), (360, 226694), (390, 209256), (468, 174380), (520, 156942), (585, 139504), (624, 130785), (720, 113347), (780, 104628), (936, 87190), (1040, 78471), (1170, 69752), (1560, 52314), (1872, 43595), (2340, 34876), (3120, 26157), (4680, 17438), (8719, 9360)]