90143660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1\times {\mathrm{419}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 196439040

約数和(自身を除く): 106295380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 347, 419, 620, 694, 838, 1388, 1676, 1735, 2095, 3470, 4190, 6940, 8380, 10757, 12989, 21514, 25978, 43028, 51956, 53785, 64945, 107570, 129890, 145393, 215140, 259780, 290786, 581572, 726965, 1453930, 2907860, 4507183, 9014366, 18028732, 22535915, 45071830, 90143660]

約数ペア:

[(1, 90143660), (2, 45071830), (4, 22535915), (5, 18028732), (10, 9014366), (20, 4507183), (31, 2907860), (62, 1453930), (124, 726965), (155, 581572), (310, 290786), (347, 259780), (419, 215140), (620, 145393), (694, 129890), (838, 107570), (1388, 64945), (1676, 53785), (1735, 51956), (2095, 43028), (3470, 25978), (4190, 21514), (6940, 12989), (8380, 10757)]