20928097648

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{221059}}^1$

素因数の和:221225

約数の個数: 40

約数和(自身を含む): 41637977360

約数和(自身を除く): 20709879712

約数列:

[1, 2, 4, 8, 16, 61, 97, 122, 194, 244, 388, 488, 776, 976, 1552, 5917, 11834, 23668, 47336, 94672, 221059, 442118, 884236, 1768472, 3536944, 13484599, 21442723, 26969198, 42885446, 53938396, 85770892, 107876792, 171541784, 215753584, 343083568, 1308006103, 2616012206, 5232024412, 10464048824, 20928097648]

約数ペア:

[(1, 20928097648), (2, 10464048824), (4, 5232024412), (8, 2616012206), (16, 1308006103), (61, 343083568), (97, 215753584), (122, 171541784), (194, 107876792), (244, 85770892), (388, 53938396), (488, 42885446), (776, 26969198), (976, 21442723), (1552, 13484599), (5917, 3536944), (11834, 1768472), (23668, 884236), (47336, 442118), (94672, 221059)]