77749760

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^2\times {\mathrm{251}}^1$

素因数の和:296

約数の個数: 120

約数和(自身を含む): 205721208

約数和(自身を除く): 127971448

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 251, 256, 320, 352, 440, 484, 502, 512, 605, 640, 704, 880, 968, 1004, 1210, 1255, 1280, 1408, 1760, 1936, 2008, 2420, 2510, 2560, 2761, 2816, 3520, 3872, 4016, 4840, 5020, 5522, 5632, 7040, 7744, 8032, 9680, 10040, 11044, 13805, 14080, 15488, 16064, 19360, 20080, 22088, 27610, 28160, 30371, 30976, 32128, 38720, 40160, 44176, 55220, 60742, 61952, 64256, 77440, 80320, 88352, 110440, 121484, 128512, 151855, 154880, 160640, 176704, 220880, 242968, 303710, 309760, 321280, 353408, 441760, 485936, 607420, 642560, 706816, 883520, 971872, 1214840, 1413632, 1767040, 1943744, 2429680, 3534080, 3887488, 4859360, 7068160, 7774976, 9718720, 15549952, 19437440, 38874880, 77749760]

約数ペア:

[(1, 77749760), (2, 38874880), (4, 19437440), (5, 15549952), (8, 9718720), (10, 7774976), (11, 7068160), (16, 4859360), (20, 3887488), (22, 3534080), (32, 2429680), (40, 1943744), (44, 1767040), (55, 1413632), (64, 1214840), (80, 971872), (88, 883520), (110, 706816), (121, 642560), (128, 607420), (160, 485936), (176, 441760), (220, 353408), (242, 321280), (251, 309760), (256, 303710), (320, 242968), (352, 220880), (440, 176704), (484, 160640), (502, 154880), (512, 151855), (605, 128512), (640, 121484), (704, 110440), (880, 88352), (968, 80320), (1004, 77440), (1210, 64256), (1255, 61952), (1280, 60742), (1408, 55220), (1760, 44176), (1936, 40160), (2008, 38720), (2420, 32128), (2510, 30976), (2560, 30371), (2761, 28160), (2816, 27610), (3520, 22088), (3872, 20080), (4016, 19360), (4840, 16064), (5020, 15488), (5522, 14080), (5632, 13805), (7040, 11044), (7744, 10040), (8032, 9680)]