31388760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:402

約数の個数: 192

約数和(自身を含む): 115970400

約数和(自身を除く): 84581640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 24, 26, 30, 36, 38, 39, 40, 45, 52, 57, 60, 65, 72, 76, 78, 90, 95, 104, 114, 117, 120, 130, 152, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 312, 342, 353, 360, 380, 390, 456, 468, 494, 520, 570, 585, 684, 706, 741, 760, 780, 855, 936, 988, 1059, 1140, 1170, 1235, 1368, 1412, 1482, 1560, 1710, 1765, 1976, 2118, 2223, 2280, 2340, 2470, 2824, 2964, 3177, 3420, 3530, 3705, 4236, 4446, 4589, 4680, 4940, 5295, 5928, 6354, 6707, 6840, 7060, 7410, 8472, 8892, 9178, 9880, 10590, 11115, 12708, 13414, 13767, 14120, 14820, 15885, 17784, 18356, 20121, 21180, 22230, 22945, 25416, 26828, 27534, 29640, 31770, 33535, 36712, 40242, 41301, 42360, 44460, 45890, 53656, 55068, 60363, 63540, 67070, 68835, 80484, 82602, 87191, 88920, 91780, 100605, 110136, 120726, 127080, 134140, 137670, 160968, 165204, 174382, 183560, 201210, 206505, 241452, 261573, 268280, 275340, 301815, 330408, 348764, 402420, 413010, 435955, 482904, 523146, 550680, 603630, 697528, 784719, 804840, 826020, 871910, 1046292, 1207260, 1307865, 1569438, 1652040, 1743820, 2092584, 2414520, 2615730, 3138876, 3487640, 3923595, 5231460, 6277752, 7847190, 10462920, 15694380, 31388760]

約数ペア:

[(1, 31388760), (2, 15694380), (3, 10462920), (4, 7847190), (5, 6277752), (6, 5231460), (8, 3923595), (9, 3487640), (10, 3138876), (12, 2615730), (13, 2414520), (15, 2092584), (18, 1743820), (19, 1652040), (20, 1569438), (24, 1307865), (26, 1207260), (30, 1046292), (36, 871910), (38, 826020), (39, 804840), (40, 784719), (45, 697528), (52, 603630), (57, 550680), (60, 523146), (65, 482904), (72, 435955), (76, 413010), (78, 402420), (90, 348764), (95, 330408), (104, 301815), (114, 275340), (117, 268280), (120, 261573), (130, 241452), (152, 206505), (156, 201210), (171, 183560), (180, 174382), (190, 165204), (195, 160968), (228, 137670), (234, 134140), (247, 127080), (260, 120726), (285, 110136), (312, 100605), (342, 91780), (353, 88920), (360, 87191), (380, 82602), (390, 80484), (456, 68835), (468, 67070), (494, 63540), (520, 60363), (570, 55068), (585, 53656), (684, 45890), (706, 44460), (741, 42360), (760, 41301), (780, 40242), (855, 36712), (936, 33535), (988, 31770), (1059, 29640), (1140, 27534), (1170, 26828), (1235, 25416), (1368, 22945), (1412, 22230), (1482, 21180), (1560, 20121), (1710, 18356), (1765, 17784), (1976, 15885), (2118, 14820), (2223, 14120), (2280, 13767), (2340, 13414), (2470, 12708), (2824, 11115), (2964, 10590), (3177, 9880), (3420, 9178), (3530, 8892), (3705, 8472), (4236, 7410), (4446, 7060), (4589, 6840), (4680, 6707), (4940, 6354), (5295, 5928)]