155215720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{5783}}^1$

素因数の和:5866

約数の個数: 64

約数和(自身を含む): 387296640

約数和(自身を除く): 232080920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1220, 1342, 2440, 2684, 3355, 5368, 5783, 6710, 11566, 13420, 23132, 26840, 28915, 46264, 57830, 63613, 115660, 127226, 231320, 254452, 318065, 352763, 508904, 636130, 705526, 1272260, 1411052, 1763815, 2544520, 2822104, 3527630, 3880393, 7055260, 7760786, 14110520, 15521572, 19401965, 31043144, 38803930, 77607860, 155215720]

約数ペア:

[(1, 155215720), (2, 77607860), (4, 38803930), (5, 31043144), (8, 19401965), (10, 15521572), (11, 14110520), (20, 7760786), (22, 7055260), (40, 3880393), (44, 3527630), (55, 2822104), (61, 2544520), (88, 1763815), (110, 1411052), (122, 1272260), (220, 705526), (244, 636130), (305, 508904), (440, 352763), (488, 318065), (610, 254452), (671, 231320), (1220, 127226), (1342, 115660), (2440, 63613), (2684, 57830), (3355, 46264), (5368, 28915), (5783, 26840), (6710, 23132), (11566, 13420)]