28252770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 85155840

約数和(自身を除く): 56903070

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 79, 91, 105, 130, 131, 158, 182, 195, 210, 237, 262, 273, 390, 393, 395, 455, 474, 546, 553, 655, 786, 790, 910, 917, 1027, 1106, 1185, 1310, 1365, 1659, 1703, 1834, 1965, 2054, 2370, 2730, 2751, 2765, 3081, 3318, 3406, 3930, 4585, 5109, 5135, 5502, 5530, 6162, 7189, 8295, 8515, 9170, 10218, 10270, 10349, 11921, 13755, 14378, 15405, 16590, 17030, 20698, 21567, 23842, 25545, 27510, 30810, 31047, 35763, 35945, 43134, 51090, 51745, 59605, 62094, 71526, 71890, 72443, 103490, 107835, 119210, 134537, 144886, 155235, 178815, 215670, 217329, 269074, 310470, 357630, 362215, 403611, 434658, 672685, 724430, 807222, 941759, 1086645, 1345370, 1883518, 2018055, 2173290, 2825277, 4036110, 4708795, 5650554, 9417590, 14126385, 28252770]

約数ペア:

[(1, 28252770), (2, 14126385), (3, 9417590), (5, 5650554), (6, 4708795), (7, 4036110), (10, 2825277), (13, 2173290), (14, 2018055), (15, 1883518), (21, 1345370), (26, 1086645), (30, 941759), (35, 807222), (39, 724430), (42, 672685), (65, 434658), (70, 403611), (78, 362215), (79, 357630), (91, 310470), (105, 269074), (130, 217329), (131, 215670), (158, 178815), (182, 155235), (195, 144886), (210, 134537), (237, 119210), (262, 107835), (273, 103490), (390, 72443), (393, 71890), (395, 71526), (455, 62094), (474, 59605), (546, 51745), (553, 51090), (655, 43134), (786, 35945), (790, 35763), (910, 31047), (917, 30810), (1027, 27510), (1106, 25545), (1185, 23842), (1310, 21567), (1365, 20698), (1659, 17030), (1703, 16590), (1834, 15405), (1965, 14378), (2054, 13755), (2370, 11921), (2730, 10349), (2751, 10270), (2765, 10218), (3081, 9170), (3318, 8515), (3406, 8295), (3930, 7189), (4585, 6162), (5109, 5530), (5135, 5502)]