120820480

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8581}}^1$

素因数の和:8613

約数の個数: 72

約数和(自身を含む): 315748944

約数和(自身を除く): 194928464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 8581, 14080, 17162, 34324, 42905, 68648, 85810, 94391, 137296, 171620, 188782, 274592, 343240, 377564, 471955, 549184, 686480, 755128, 943910, 1098368, 1372960, 1510256, 1887820, 2196736, 2745920, 3020512, 3775640, 5491840, 6041024, 7551280, 10983680, 12082048, 15102560, 24164096, 30205120, 60410240, 120820480]

約数ペア:

[(1, 120820480), (2, 60410240), (4, 30205120), (5, 24164096), (8, 15102560), (10, 12082048), (11, 10983680), (16, 7551280), (20, 6041024), (22, 5491840), (32, 3775640), (40, 3020512), (44, 2745920), (55, 2196736), (64, 1887820), (80, 1510256), (88, 1372960), (110, 1098368), (128, 943910), (160, 755128), (176, 686480), (220, 549184), (256, 471955), (320, 377564), (352, 343240), (440, 274592), (640, 188782), (704, 171620), (880, 137296), (1280, 94391), (1408, 85810), (1760, 68648), (2816, 42905), (3520, 34324), (7040, 17162), (8581, 14080)]