20896480

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:440

約数の個数: 96

約数和(自身を含む): 55738368

約数和(自身を除く): 34841888

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 341, 352, 383, 440, 496, 620, 682, 766, 880, 992, 1240, 1364, 1532, 1705, 1760, 1915, 2480, 2728, 3064, 3410, 3830, 4213, 4960, 5456, 6128, 6820, 7660, 8426, 10912, 11873, 12256, 13640, 15320, 16852, 21065, 23746, 27280, 30640, 33704, 42130, 47492, 54560, 59365, 61280, 67408, 84260, 94984, 118730, 130603, 134816, 168520, 189968, 237460, 261206, 337040, 379936, 474920, 522412, 653015, 674080, 949840, 1044824, 1306030, 1899680, 2089648, 2612060, 4179296, 5224120, 10448240, 20896480]

約数ペア:

[(1, 20896480), (2, 10448240), (4, 5224120), (5, 4179296), (8, 2612060), (10, 2089648), (11, 1899680), (16, 1306030), (20, 1044824), (22, 949840), (31, 674080), (32, 653015), (40, 522412), (44, 474920), (55, 379936), (62, 337040), (80, 261206), (88, 237460), (110, 189968), (124, 168520), (155, 134816), (160, 130603), (176, 118730), (220, 94984), (248, 84260), (310, 67408), (341, 61280), (352, 59365), (383, 54560), (440, 47492), (496, 42130), (620, 33704), (682, 30640), (766, 27280), (880, 23746), (992, 21065), (1240, 16852), (1364, 15320), (1532, 13640), (1705, 12256), (1760, 11873), (1915, 10912), (2480, 8426), (2728, 7660), (3064, 6820), (3410, 6128), (3830, 5456), (4213, 4960)]