1291206215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{3659}}^1$

素因数の和:3827

約数の個数: 32

約数和(自身を含む): 1715515200

約数和(自身を除く): 424308985

約数列:

[1, 5, 13, 61, 65, 89, 305, 445, 793, 1157, 3659, 3965, 5429, 5785, 18295, 27145, 47567, 70577, 223199, 237835, 325651, 352885, 1115995, 1628255, 2901587, 4233463, 14507935, 19864711, 21167315, 99323555, 258241243, 1291206215]

約数ペア:

[(1, 1291206215), (5, 258241243), (13, 99323555), (61, 21167315), (65, 19864711), (89, 14507935), (305, 4233463), (445, 2901587), (793, 1628255), (1157, 1115995), (3659, 352885), (3965, 325651), (5429, 237835), (5785, 223199), (18295, 70577), (27145, 47567)]