138990280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{47}}^2$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 378228060

約数和(自身を除く): 239237780

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 47, 52, 55, 65, 88, 94, 104, 110, 121, 130, 143, 188, 220, 235, 242, 260, 286, 376, 440, 470, 484, 517, 520, 572, 605, 611, 715, 940, 968, 1034, 1144, 1210, 1222, 1430, 1573, 1880, 2068, 2209, 2420, 2444, 2585, 2860, 3055, 3146, 4136, 4418, 4840, 4888, 5170, 5687, 5720, 6110, 6292, 6721, 7865, 8836, 10340, 11045, 11374, 12220, 12584, 13442, 15730, 17672, 20680, 22090, 22748, 24299, 24440, 26884, 28435, 28717, 31460, 33605, 44180, 45496, 48598, 53768, 56870, 57434, 62920, 67210, 73931, 88360, 97196, 113740, 114868, 121495, 134420, 143585, 147862, 194392, 227480, 229736, 242990, 267289, 268840, 287170, 295724, 315887, 369655, 485980, 534578, 574340, 591448, 631774, 739310, 971960, 1069156, 1148680, 1263548, 1336445, 1478620, 1579435, 2138312, 2527096, 2672890, 2957240, 3158870, 3474757, 5345780, 6317740, 6949514, 10691560, 12635480, 13899028, 17373785, 27798056, 34747570, 69495140, 138990280]

約数ペア:

[(1, 138990280), (2, 69495140), (4, 34747570), (5, 27798056), (8, 17373785), (10, 13899028), (11, 12635480), (13, 10691560), (20, 6949514), (22, 6317740), (26, 5345780), (40, 3474757), (44, 3158870), (47, 2957240), (52, 2672890), (55, 2527096), (65, 2138312), (88, 1579435), (94, 1478620), (104, 1336445), (110, 1263548), (121, 1148680), (130, 1069156), (143, 971960), (188, 739310), (220, 631774), (235, 591448), (242, 574340), (260, 534578), (286, 485980), (376, 369655), (440, 315887), (470, 295724), (484, 287170), (517, 268840), (520, 267289), (572, 242990), (605, 229736), (611, 227480), (715, 194392), (940, 147862), (968, 143585), (1034, 134420), (1144, 121495), (1210, 114868), (1222, 113740), (1430, 97196), (1573, 88360), (1880, 73931), (2068, 67210), (2209, 62920), (2420, 57434), (2444, 56870), (2585, 53768), (2860, 48598), (3055, 45496), (3146, 44180), (4136, 33605), (4418, 31460), (4840, 28717), (4888, 28435), (5170, 26884), (5687, 24440), (5720, 24299), (6110, 22748), (6292, 22090), (6721, 20680), (7865, 17672), (8836, 15730), (10340, 13442), (11045, 12584), (11374, 12220)]