389735720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{28573}}^1$

素因数の和:28626

約数の個数: 64

約数和(自身を含む): 987517440

約数和(自身を除く): 597781720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 28573, 57146, 114292, 142865, 228584, 285730, 314303, 571460, 628606, 885763, 1142920, 1257212, 1571515, 1771526, 2514424, 3143030, 3543052, 4428815, 6286060, 7086104, 8857630, 9743393, 12572120, 17715260, 19486786, 35430520, 38973572, 48716965, 77947144, 97433930, 194867860, 389735720]

約数ペア:

[(1, 389735720), (2, 194867860), (4, 97433930), (5, 77947144), (8, 48716965), (10, 38973572), (11, 35430520), (20, 19486786), (22, 17715260), (31, 12572120), (40, 9743393), (44, 8857630), (55, 7086104), (62, 6286060), (88, 4428815), (110, 3543052), (124, 3143030), (155, 2514424), (220, 1771526), (248, 1571515), (310, 1257212), (341, 1142920), (440, 885763), (620, 628606), (682, 571460), (1240, 314303), (1364, 285730), (1705, 228584), (2728, 142865), (3410, 114292), (6820, 57146), (13640, 28573)]