20926240

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4219}}^1$

素因数の和:4265

約数の個数: 48

約数和(自身を含む): 51045120

約数和(自身を除く): 30118880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4219, 4960, 8438, 16876, 21095, 33752, 42190, 67504, 84380, 130789, 135008, 168760, 261578, 337520, 523156, 653945, 675040, 1046312, 1307890, 2092624, 2615780, 4185248, 5231560, 10463120, 20926240]

約数ペア:

[(1, 20926240), (2, 10463120), (4, 5231560), (5, 4185248), (8, 2615780), (10, 2092624), (16, 1307890), (20, 1046312), (31, 675040), (32, 653945), (40, 523156), (62, 337520), (80, 261578), (124, 168760), (155, 135008), (160, 130789), (248, 84380), (310, 67504), (496, 42190), (620, 33752), (992, 21095), (1240, 16876), (2480, 8438), (4219, 4960)]