128591840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{293}}^1$

素因数の和:532

約数の個数: 96

約数和(自身を含む): 329839776

約数和(自身を除く): 201247936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 211, 260, 293, 416, 422, 520, 586, 844, 1040, 1055, 1172, 1465, 1688, 2080, 2110, 2344, 2743, 2930, 3376, 3809, 4220, 4688, 5486, 5860, 6752, 7618, 8440, 9376, 10972, 11720, 13715, 15236, 16880, 19045, 21944, 23440, 27430, 30472, 33760, 38090, 43888, 46880, 54860, 60944, 61823, 76180, 87776, 109720, 121888, 123646, 152360, 219440, 247292, 304720, 309115, 438880, 494584, 609440, 618230, 803699, 989168, 1236460, 1607398, 1978336, 2472920, 3214796, 4018495, 4945840, 6429592, 8036990, 9891680, 12859184, 16073980, 25718368, 32147960, 64295920, 128591840]

約数ペア:

[(1, 128591840), (2, 64295920), (4, 32147960), (5, 25718368), (8, 16073980), (10, 12859184), (13, 9891680), (16, 8036990), (20, 6429592), (26, 4945840), (32, 4018495), (40, 3214796), (52, 2472920), (65, 1978336), (80, 1607398), (104, 1236460), (130, 989168), (160, 803699), (208, 618230), (211, 609440), (260, 494584), (293, 438880), (416, 309115), (422, 304720), (520, 247292), (586, 219440), (844, 152360), (1040, 123646), (1055, 121888), (1172, 109720), (1465, 87776), (1688, 76180), (2080, 61823), (2110, 60944), (2344, 54860), (2743, 46880), (2930, 43888), (3376, 38090), (3809, 33760), (4220, 30472), (4688, 27430), (5486, 23440), (5860, 21944), (6752, 19045), (7618, 16880), (8440, 15236), (9376, 13715), (10972, 11720)]