51365840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 127759680

約数和(自身を除く): 76393840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 179, 211, 272, 340, 358, 422, 680, 716, 844, 895, 1055, 1360, 1432, 1688, 1790, 2110, 2864, 3043, 3376, 3580, 3587, 4220, 6086, 7160, 7174, 8440, 12172, 14320, 14348, 15215, 16880, 17935, 24344, 28696, 30430, 35870, 37769, 48688, 57392, 60860, 71740, 75538, 121720, 143480, 151076, 188845, 243440, 286960, 302152, 377690, 604304, 642073, 755380, 1284146, 1510760, 2568292, 3021520, 3210365, 5136584, 6420730, 10273168, 12841460, 25682920, 51365840]

約数ペア:

[(1, 51365840), (2, 25682920), (4, 12841460), (5, 10273168), (8, 6420730), (10, 5136584), (16, 3210365), (17, 3021520), (20, 2568292), (34, 1510760), (40, 1284146), (68, 755380), (80, 642073), (85, 604304), (136, 377690), (170, 302152), (179, 286960), (211, 243440), (272, 188845), (340, 151076), (358, 143480), (422, 121720), (680, 75538), (716, 71740), (844, 60860), (895, 57392), (1055, 48688), (1360, 37769), (1432, 35870), (1688, 30430), (1790, 28696), (2110, 24344), (2864, 17935), (3043, 16880), (3376, 15215), (3580, 14348), (3587, 14320), (4220, 12172), (6086, 8440), (7160, 7174)]