85905820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:660

約数の個数: 144

約数和(自身を含む): 246945888

約数和(自身を除く): 161040068

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 55, 65, 70, 77, 91, 98, 110, 130, 140, 143, 154, 182, 196, 220, 245, 260, 286, 308, 364, 385, 455, 490, 539, 572, 613, 637, 715, 770, 910, 980, 1001, 1078, 1226, 1274, 1430, 1540, 1820, 2002, 2156, 2452, 2548, 2695, 2860, 3065, 3185, 4004, 4291, 5005, 5390, 6130, 6370, 6743, 7007, 7969, 8582, 10010, 10780, 12260, 12740, 13486, 14014, 15938, 17164, 20020, 21455, 26972, 28028, 30037, 31876, 33715, 35035, 39845, 42910, 47201, 55783, 60074, 67430, 70070, 79690, 85820, 87659, 94402, 111566, 120148, 134860, 140140, 150185, 159380, 175318, 188804, 223132, 236005, 278915, 300370, 330407, 350636, 390481, 438295, 472010, 557830, 600740, 613613, 660814, 780962, 876590, 944020, 1115660, 1227226, 1321628, 1561924, 1652035, 1753180, 1952405, 2454452, 3068065, 3304070, 3904810, 4295291, 6136130, 6608140, 7809620, 8590582, 12272260, 17181164, 21476455, 42952910, 85905820]

約数ペア:

[(1, 85905820), (2, 42952910), (4, 21476455), (5, 17181164), (7, 12272260), (10, 8590582), (11, 7809620), (13, 6608140), (14, 6136130), (20, 4295291), (22, 3904810), (26, 3304070), (28, 3068065), (35, 2454452), (44, 1952405), (49, 1753180), (52, 1652035), (55, 1561924), (65, 1321628), (70, 1227226), (77, 1115660), (91, 944020), (98, 876590), (110, 780962), (130, 660814), (140, 613613), (143, 600740), (154, 557830), (182, 472010), (196, 438295), (220, 390481), (245, 350636), (260, 330407), (286, 300370), (308, 278915), (364, 236005), (385, 223132), (455, 188804), (490, 175318), (539, 159380), (572, 150185), (613, 140140), (637, 134860), (715, 120148), (770, 111566), (910, 94402), (980, 87659), (1001, 85820), (1078, 79690), (1226, 70070), (1274, 67430), (1430, 60074), (1540, 55783), (1820, 47201), (2002, 42910), (2156, 39845), (2452, 35035), (2548, 33715), (2695, 31876), (2860, 30037), (3065, 28028), (3185, 26972), (4004, 21455), (4291, 20020), (5005, 17164), (5390, 15938), (6130, 14014), (6370, 13486), (6743, 12740), (7007, 12260), (7969, 10780), (8582, 10010)]