31428980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{383}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 72382464

約数和(自身を除く): 40953484

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 373, 383, 746, 766, 1492, 1532, 1865, 1915, 3730, 3830, 4103, 4213, 7460, 7660, 8206, 8426, 16412, 16852, 20515, 21065, 41030, 42130, 82060, 84260, 142859, 285718, 571436, 714295, 1428590, 1571449, 2857180, 3142898, 6285796, 7857245, 15714490, 31428980]

約数ペア:

[(1, 31428980), (2, 15714490), (4, 7857245), (5, 6285796), (10, 3142898), (11, 2857180), (20, 1571449), (22, 1428590), (44, 714295), (55, 571436), (110, 285718), (220, 142859), (373, 84260), (383, 82060), (746, 42130), (766, 41030), (1492, 21065), (1532, 20515), (1865, 16852), (1915, 16412), (3730, 8426), (3830, 8206), (4103, 7660), (4213, 7460)]