20157438870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1\times {\mathrm{787}}^1$

素因数の和:1216

約数の個数: 160

約数和(自身を含む): 54975368448

約数和(自身を除く): 34817929578

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 103, 135, 162, 206, 270, 307, 309, 405, 515, 614, 618, 787, 810, 921, 927, 1030, 1535, 1545, 1574, 1842, 1854, 2361, 2763, 2781, 3070, 3090, 3935, 4605, 4635, 4722, 5526, 5562, 7083, 7870, 8289, 8343, 9210, 9270, 11805, 13815, 13905, 14166, 16578, 16686, 21249, 23610, 24867, 27630, 27810, 31621, 35415, 41445, 41715, 42498, 49734, 63242, 63747, 70830, 81061, 82890, 83430, 94863, 106245, 124335, 127494, 158105, 162122, 189726, 212490, 241609, 243183, 248670, 284589, 316210, 318735, 405305, 474315, 483218, 486366, 569178, 637470, 724827, 729549, 810610, 853767, 948630, 1208045, 1215915, 1422945, 1449654, 1459098, 1707534, 2174481, 2188647, 2416090, 2431830, 2561301, 2845890, 3624135, 3647745, 4268835, 4348962, 4377294, 5122602, 6523443, 6565941, 7248270, 7295490, 8537670, 10872405, 10943235, 12806505, 13046886, 13131882, 19570329, 21744810, 21886470, 24885727, 25613010, 32617215, 32829705, 39140658, 49771454, 65234430, 65659410, 74657181, 97851645, 124428635, 149314362, 195703290, 223971543, 248857270, 373285905, 447943086, 671914629, 746571810, 1119857715, 1343829258, 2015743887, 2239715430, 3359573145, 4031487774, 6719146290, 10078719435, 20157438870]

約数ペア:

[(1, 20157438870), (2, 10078719435), (3, 6719146290), (5, 4031487774), (6, 3359573145), (9, 2239715430), (10, 2015743887), (15, 1343829258), (18, 1119857715), (27, 746571810), (30, 671914629), (45, 447943086), (54, 373285905), (81, 248857270), (90, 223971543), (103, 195703290), (135, 149314362), (162, 124428635), (206, 97851645), (270, 74657181), (307, 65659410), (309, 65234430), (405, 49771454), (515, 39140658), (614, 32829705), (618, 32617215), (787, 25613010), (810, 24885727), (921, 21886470), (927, 21744810), (1030, 19570329), (1535, 13131882), (1545, 13046886), (1574, 12806505), (1842, 10943235), (1854, 10872405), (2361, 8537670), (2763, 7295490), (2781, 7248270), (3070, 6565941), (3090, 6523443), (3935, 5122602), (4605, 4377294), (4635, 4348962), (4722, 4268835), (5526, 3647745), (5562, 3624135), (7083, 2845890), (7870, 2561301), (8289, 2431830), (8343, 2416090), (9210, 2188647), (9270, 2174481), (11805, 1707534), (13815, 1459098), (13905, 1449654), (14166, 1422945), (16578, 1215915), (16686, 1208045), (21249, 948630), (23610, 853767), (24867, 810610), (27630, 729549), (27810, 724827), (31621, 637470), (35415, 569178), (41445, 486366), (41715, 483218), (42498, 474315), (49734, 405305), (63242, 318735), (63747, 316210), (70830, 284589), (81061, 248670), (82890, 243183), (83430, 241609), (94863, 212490), (106245, 189726), (124335, 162122), (127494, 158105)]