20147796520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1567}}^1\times {\mathrm{10369}}^1$

素因数の和:11978

約数の個数: 64

約数和(自身を含む): 46829260800

約数和(自身を除く): 26681464280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1567, 3134, 6268, 7835, 10369, 12536, 15670, 20738, 31340, 41476, 48577, 51845, 62680, 82952, 97154, 103690, 194308, 207380, 242885, 321439, 388616, 414760, 485770, 642878, 971540, 1285756, 1607195, 1943080, 2571512, 3214390, 6428780, 12857560, 16248223, 32496446, 64992892, 81241115, 129985784, 162482230, 324964460, 503694913, 649928920, 1007389826, 2014779652, 2518474565, 4029559304, 5036949130, 10073898260, 20147796520]

約数ペア:

[(1, 20147796520), (2, 10073898260), (4, 5036949130), (5, 4029559304), (8, 2518474565), (10, 2014779652), (20, 1007389826), (31, 649928920), (40, 503694913), (62, 324964460), (124, 162482230), (155, 129985784), (248, 81241115), (310, 64992892), (620, 32496446), (1240, 16248223), (1567, 12857560), (3134, 6428780), (6268, 3214390), (7835, 2571512), (10369, 1943080), (12536, 1607195), (15670, 1285756), (20738, 971540), (31340, 642878), (41476, 485770), (48577, 414760), (51845, 388616), (62680, 321439), (82952, 242885), (97154, 207380), (103690, 194308)]