81382080

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6521}}^1$

素因数の和:6554

約数の個数: 112

約数和(自身を含む): 278306784

約数和(自身を除く): 196924704

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 6521, 12480, 13042, 19563, 26084, 32605, 39126, 52168, 65210, 78252, 84773, 97815, 104336, 130420, 156504, 169546, 195630, 208672, 254319, 260840, 313008, 339092, 391260, 417344, 423865, 508638, 521680, 626016, 678184, 782520, 847730, 1017276, 1043360, 1252032, 1271595, 1356368, 1565040, 1695460, 2034552, 2086720, 2543190, 2712736, 3130080, 3390920, 4069104, 5086380, 5425472, 6260160, 6781840, 8138208, 10172760, 13563680, 16276416, 20345520, 27127360, 40691040, 81382080]

約数ペア:

[(1, 81382080), (2, 40691040), (3, 27127360), (4, 20345520), (5, 16276416), (6, 13563680), (8, 10172760), (10, 8138208), (12, 6781840), (13, 6260160), (15, 5425472), (16, 5086380), (20, 4069104), (24, 3390920), (26, 3130080), (30, 2712736), (32, 2543190), (39, 2086720), (40, 2034552), (48, 1695460), (52, 1565040), (60, 1356368), (64, 1271595), (65, 1252032), (78, 1043360), (80, 1017276), (96, 847730), (104, 782520), (120, 678184), (130, 626016), (156, 521680), (160, 508638), (192, 423865), (195, 417344), (208, 391260), (240, 339092), (260, 313008), (312, 260840), (320, 254319), (390, 208672), (416, 195630), (480, 169546), (520, 156504), (624, 130420), (780, 104336), (832, 97815), (960, 84773), (1040, 78252), (1248, 65210), (1560, 52168), (2080, 39126), (2496, 32605), (3120, 26084), (4160, 19563), (6240, 13042), (6521, 12480)]