72908920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^3\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 128

約数和(自身を含む): 202953600

約数和(自身を除く): 130044680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 53, 56, 68, 70, 85, 106, 119, 136, 140, 170, 212, 238, 265, 280, 289, 340, 371, 424, 476, 530, 578, 595, 680, 742, 901, 952, 1060, 1156, 1190, 1445, 1484, 1802, 1855, 2023, 2120, 2312, 2380, 2890, 2968, 3604, 3710, 4046, 4505, 4760, 4913, 5780, 6307, 7208, 7420, 8092, 9010, 9826, 10115, 11560, 12614, 14840, 15317, 16184, 18020, 19652, 20230, 24565, 25228, 30634, 31535, 34391, 36040, 39304, 40460, 49130, 50456, 61268, 63070, 68782, 76585, 80920, 98260, 107219, 122536, 126140, 137564, 153170, 171955, 196520, 214438, 252280, 260389, 275128, 306340, 343910, 428876, 520778, 536095, 612680, 687820, 857752, 1041556, 1072190, 1301945, 1375640, 1822723, 2083112, 2144380, 2603890, 3645446, 4288760, 5207780, 7290892, 9113615, 10415560, 14581784, 18227230, 36454460, 72908920]

約数ペア:

[(1, 72908920), (2, 36454460), (4, 18227230), (5, 14581784), (7, 10415560), (8, 9113615), (10, 7290892), (14, 5207780), (17, 4288760), (20, 3645446), (28, 2603890), (34, 2144380), (35, 2083112), (40, 1822723), (53, 1375640), (56, 1301945), (68, 1072190), (70, 1041556), (85, 857752), (106, 687820), (119, 612680), (136, 536095), (140, 520778), (170, 428876), (212, 343910), (238, 306340), (265, 275128), (280, 260389), (289, 252280), (340, 214438), (371, 196520), (424, 171955), (476, 153170), (530, 137564), (578, 126140), (595, 122536), (680, 107219), (742, 98260), (901, 80920), (952, 76585), (1060, 68782), (1156, 63070), (1190, 61268), (1445, 50456), (1484, 49130), (1802, 40460), (1855, 39304), (2023, 36040), (2120, 34391), (2312, 31535), (2380, 30634), (2890, 25228), (2968, 24565), (3604, 20230), (3710, 19652), (4046, 18020), (4505, 16184), (4760, 15317), (4913, 14840), (5780, 12614), (6307, 11560), (7208, 10115), (7420, 9826), (8092, 9010)]