28780491208

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{49223}}^1$

素因数の和:49486

約数の個数: 64

約数和(自身を含む): 63156360960

約数和(自身を除く): 34375869752

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 197, 212, 371, 394, 424, 742, 788, 1379, 1484, 1576, 2758, 2968, 5516, 10441, 11032, 20882, 41764, 49223, 73087, 83528, 98446, 146174, 196892, 292348, 344561, 393784, 584696, 689122, 1378244, 2608819, 2756488, 5217638, 9696931, 10435276, 18261733, 19393862, 20870552, 36523466, 38787724, 67878517, 73046932, 77575448, 135757034, 146093864, 271514068, 513937343, 543028136, 1027874686, 2055749372, 3597561401, 4111498744, 7195122802, 14390245604, 28780491208]

約数ペア:

[(1, 28780491208), (2, 14390245604), (4, 7195122802), (7, 4111498744), (8, 3597561401), (14, 2055749372), (28, 1027874686), (53, 543028136), (56, 513937343), (106, 271514068), (197, 146093864), (212, 135757034), (371, 77575448), (394, 73046932), (424, 67878517), (742, 38787724), (788, 36523466), (1379, 20870552), (1484, 19393862), (1576, 18261733), (2758, 10435276), (2968, 9696931), (5516, 5217638), (10441, 2756488), (11032, 2608819), (20882, 1378244), (41764, 689122), (49223, 584696), (73087, 393784), (83528, 344561), (98446, 292348), (146174, 196892)]