31780476

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:228

約数の個数: 144

約数和(自身を含む): 100900800

約数和(自身を除く): 69120324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 89, 91, 109, 117, 126, 156, 178, 182, 218, 234, 252, 267, 273, 327, 356, 364, 436, 468, 534, 546, 623, 654, 763, 801, 819, 981, 1068, 1092, 1157, 1246, 1308, 1417, 1526, 1602, 1638, 1869, 1962, 2289, 2314, 2492, 2834, 3052, 3204, 3276, 3471, 3738, 3924, 4251, 4578, 4628, 5607, 5668, 6867, 6942, 7476, 8099, 8502, 9156, 9701, 9919, 10413, 11214, 12753, 13734, 13884, 16198, 17004, 19402, 19838, 20826, 22428, 24297, 25506, 27468, 29103, 29757, 32396, 38804, 39676, 41652, 48594, 51012, 58206, 59514, 67907, 72891, 87309, 89271, 97188, 116412, 119028, 126113, 135814, 145782, 174618, 178542, 203721, 252226, 271628, 291564, 349236, 357084, 378339, 407442, 504452, 611163, 756678, 814884, 882791, 1135017, 1222326, 1513356, 1765582, 2270034, 2444652, 2648373, 3531164, 4540068, 5296746, 7945119, 10593492, 15890238, 31780476]

約数ペア:

[(1, 31780476), (2, 15890238), (3, 10593492), (4, 7945119), (6, 5296746), (7, 4540068), (9, 3531164), (12, 2648373), (13, 2444652), (14, 2270034), (18, 1765582), (21, 1513356), (26, 1222326), (28, 1135017), (36, 882791), (39, 814884), (42, 756678), (52, 611163), (63, 504452), (78, 407442), (84, 378339), (89, 357084), (91, 349236), (109, 291564), (117, 271628), (126, 252226), (156, 203721), (178, 178542), (182, 174618), (218, 145782), (234, 135814), (252, 126113), (267, 119028), (273, 116412), (327, 97188), (356, 89271), (364, 87309), (436, 72891), (468, 67907), (534, 59514), (546, 58206), (623, 51012), (654, 48594), (763, 41652), (801, 39676), (819, 38804), (981, 32396), (1068, 29757), (1092, 29103), (1157, 27468), (1246, 25506), (1308, 24297), (1417, 22428), (1526, 20826), (1602, 19838), (1638, 19402), (1869, 17004), (1962, 16198), (2289, 13884), (2314, 13734), (2492, 12753), (2834, 11214), (3052, 10413), (3204, 9919), (3276, 9701), (3471, 9156), (3738, 8502), (3924, 8099), (4251, 7476), (4578, 6942), (4628, 6867), (5607, 5668)]