128297840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4703}}^1$

素因数の和:4758

約数の個数: 80

約数和(自身を含む): 335978496

約数和(自身を除く): 207680656

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 4703, 5456, 6820, 9406, 13640, 18812, 23515, 27280, 37624, 47030, 51733, 75248, 94060, 103466, 145793, 188120, 206932, 258665, 291586, 376240, 413864, 517330, 583172, 728965, 827728, 1034660, 1166344, 1457930, 1603723, 2069320, 2332688, 2915860, 3207446, 4138640, 5831720, 6414892, 8018615, 11663440, 12829784, 16037230, 25659568, 32074460, 64148920, 128297840]

約数ペア:

[(1, 128297840), (2, 64148920), (4, 32074460), (5, 25659568), (8, 16037230), (10, 12829784), (11, 11663440), (16, 8018615), (20, 6414892), (22, 5831720), (31, 4138640), (40, 3207446), (44, 2915860), (55, 2332688), (62, 2069320), (80, 1603723), (88, 1457930), (110, 1166344), (124, 1034660), (155, 827728), (176, 728965), (220, 583172), (248, 517330), (310, 413864), (341, 376240), (440, 291586), (496, 258665), (620, 206932), (682, 188120), (880, 145793), (1240, 103466), (1364, 94060), (1705, 75248), (2480, 51733), (2728, 47030), (3410, 37624), (4703, 27280), (5456, 23515), (6820, 18812), (9406, 13640)]