213066100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:386

約数の個数: 144

約数和(自身を含む): 545965056

約数和(自身を除く): 332898956

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 31, 34, 50, 52, 62, 65, 68, 85, 100, 124, 130, 155, 170, 221, 260, 310, 311, 325, 340, 403, 425, 442, 527, 620, 622, 650, 775, 806, 850, 884, 1054, 1105, 1244, 1300, 1550, 1555, 1612, 1700, 2015, 2108, 2210, 2635, 3100, 3110, 4030, 4043, 4420, 5270, 5287, 5525, 6220, 6851, 7775, 8060, 8086, 9641, 10075, 10540, 10574, 11050, 13175, 13702, 15550, 16172, 19282, 20150, 20215, 21148, 22100, 26350, 26435, 27404, 31100, 34255, 38564, 40300, 40430, 48205, 52700, 52870, 68510, 68731, 80860, 96410, 101075, 105740, 125333, 132175, 137020, 137462, 163897, 171275, 192820, 202150, 241025, 250666, 264350, 274924, 327794, 342550, 343655, 404300, 482050, 501332, 528700, 626665, 655588, 685100, 687310, 819485, 964100, 1253330, 1374620, 1638970, 1718275, 2130661, 2506660, 3133325, 3277940, 3436550, 4097425, 4261322, 6266650, 6873100, 8194850, 8522644, 10653305, 12533300, 16389700, 21306610, 42613220, 53266525, 106533050, 213066100]

約数ペア:

[(1, 213066100), (2, 106533050), (4, 53266525), (5, 42613220), (10, 21306610), (13, 16389700), (17, 12533300), (20, 10653305), (25, 8522644), (26, 8194850), (31, 6873100), (34, 6266650), (50, 4261322), (52, 4097425), (62, 3436550), (65, 3277940), (68, 3133325), (85, 2506660), (100, 2130661), (124, 1718275), (130, 1638970), (155, 1374620), (170, 1253330), (221, 964100), (260, 819485), (310, 687310), (311, 685100), (325, 655588), (340, 626665), (403, 528700), (425, 501332), (442, 482050), (527, 404300), (620, 343655), (622, 342550), (650, 327794), (775, 274924), (806, 264350), (850, 250666), (884, 241025), (1054, 202150), (1105, 192820), (1244, 171275), (1300, 163897), (1550, 137462), (1555, 137020), (1612, 132175), (1700, 125333), (2015, 105740), (2108, 101075), (2210, 96410), (2635, 80860), (3100, 68731), (3110, 68510), (4030, 52870), (4043, 52700), (4420, 48205), (5270, 40430), (5287, 40300), (5525, 38564), (6220, 34255), (6851, 31100), (7775, 27404), (8060, 26435), (8086, 26350), (9641, 22100), (10075, 21148), (10540, 20215), (10574, 20150), (11050, 19282), (13175, 16172), (13702, 15550)]