20187318515

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{359}}^1\times {\mathrm{1489}}^1$

素因数の和:1956

約数の個数: 64

約数和(自身を含む): 30278707200

約数和(自身を除く): 10091388685

約数列:

[1, 5, 7, 13, 35, 65, 83, 91, 359, 415, 455, 581, 1079, 1489, 1795, 2513, 2905, 4667, 5395, 7445, 7553, 10423, 12565, 19357, 23335, 29797, 32669, 37765, 52115, 96785, 123587, 135499, 148985, 163345, 208579, 387361, 534551, 617935, 677495, 865109, 1042895, 1606631, 1936805, 2672755, 2711527, 3741857, 4325545, 6949163, 8033155, 11246417, 13557635, 18709285, 34745815, 44367733, 48644141, 56232085, 221838665, 243220705, 310574131, 576780529, 1552870655, 2883902645, 4037463703, 20187318515]

約数ペア:

[(1, 20187318515), (5, 4037463703), (7, 2883902645), (13, 1552870655), (35, 576780529), (65, 310574131), (83, 243220705), (91, 221838665), (359, 56232085), (415, 48644141), (455, 44367733), (581, 34745815), (1079, 18709285), (1489, 13557635), (1795, 11246417), (2513, 8033155), (2905, 6949163), (4667, 4325545), (5395, 3741857), (7445, 2711527), (7553, 2672755), (10423, 1936805), (12565, 1606631), (19357, 1042895), (23335, 865109), (29797, 677495), (32669, 617935), (37765, 534551), (52115, 387361), (96785, 208579), (123587, 163345), (135499, 148985)]