28681956

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 75896184

約数和(自身を除く): 47214228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 61, 74, 111, 122, 148, 183, 222, 244, 333, 353, 366, 444, 549, 666, 706, 732, 1059, 1098, 1332, 1412, 2118, 2196, 2257, 3177, 4236, 4514, 6354, 6771, 9028, 12708, 13061, 13542, 20313, 21533, 26122, 27084, 39183, 40626, 43066, 52244, 64599, 78366, 81252, 86132, 117549, 129198, 156732, 193797, 235098, 258396, 387594, 470196, 775188, 796721, 1593442, 2390163, 3186884, 4780326, 7170489, 9560652, 14340978, 28681956]

約数ペア:

[(1, 28681956), (2, 14340978), (3, 9560652), (4, 7170489), (6, 4780326), (9, 3186884), (12, 2390163), (18, 1593442), (36, 796721), (37, 775188), (61, 470196), (74, 387594), (111, 258396), (122, 235098), (148, 193797), (183, 156732), (222, 129198), (244, 117549), (333, 86132), (353, 81252), (366, 78366), (444, 64599), (549, 52244), (666, 43066), (706, 40626), (732, 39183), (1059, 27084), (1098, 26122), (1332, 21533), (1412, 20313), (2118, 13542), (2196, 13061), (2257, 12708), (3177, 9028), (4236, 6771), (4514, 6354)]