257790940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{22109}}^1$

素因数の和:22182

約数の個数: 48

約数和(自身を含む): 601745760

約数和(自身を除く): 343954820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 2332, 2915, 5830, 11660, 22109, 44218, 88436, 110545, 221090, 243199, 442180, 486398, 972796, 1171777, 1215995, 2343554, 2431990, 4687108, 4863980, 5858885, 11717770, 12889547, 23435540, 25779094, 51558188, 64447735, 128895470, 257790940]

約数ペア:

[(1, 257790940), (2, 128895470), (4, 64447735), (5, 51558188), (10, 25779094), (11, 23435540), (20, 12889547), (22, 11717770), (44, 5858885), (53, 4863980), (55, 4687108), (106, 2431990), (110, 2343554), (212, 1215995), (220, 1171777), (265, 972796), (530, 486398), (583, 442180), (1060, 243199), (1166, 221090), (2332, 110545), (2915, 88436), (5830, 44218), (11660, 22109)]