320996925

素因数分解:

$3^8\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:156

約数の個数: 108

約数和(自身を含む): 634547680

約数和(自身を除く): 313550755

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 103, 135, 171, 225, 243, 285, 309, 405, 475, 513, 515, 675, 729, 855, 927, 1215, 1425, 1539, 1545, 1957, 2025, 2187, 2565, 2575, 2781, 3645, 4275, 4617, 4635, 5871, 6075, 6561, 7695, 7725, 8343, 9785, 10935, 12825, 13851, 13905, 17613, 18225, 23085, 23175, 25029, 29355, 32805, 38475, 41553, 41715, 48925, 52839, 54675, 69255, 69525, 75087, 88065, 115425, 124659, 125145, 146775, 158517, 164025, 207765, 208575, 225261, 264195, 346275, 375435, 440325, 475551, 623295, 625725, 675783, 792585, 1038825, 1126305, 1320975, 1426653, 1877175, 2377755, 3116475, 3378915, 3962925, 4279959, 5631525, 7133265, 11888775, 12839877, 16894575, 21399795, 35666325, 64199385, 106998975, 320996925]

約数ペア:

[(1, 320996925), (3, 106998975), (5, 64199385), (9, 35666325), (15, 21399795), (19, 16894575), (25, 12839877), (27, 11888775), (45, 7133265), (57, 5631525), (75, 4279959), (81, 3962925), (95, 3378915), (103, 3116475), (135, 2377755), (171, 1877175), (225, 1426653), (243, 1320975), (285, 1126305), (309, 1038825), (405, 792585), (475, 675783), (513, 625725), (515, 623295), (675, 475551), (729, 440325), (855, 375435), (927, 346275), (1215, 264195), (1425, 225261), (1539, 208575), (1545, 207765), (1957, 164025), (2025, 158517), (2187, 146775), (2565, 125145), (2575, 124659), (2781, 115425), (3645, 88065), (4275, 75087), (4617, 69525), (4635, 69255), (5871, 54675), (6075, 52839), (6561, 48925), (7695, 41715), (7725, 41553), (8343, 38475), (9785, 32805), (10935, 29355), (12825, 25029), (13851, 23175), (13905, 23085), (17613, 18225)]