397820420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{4999}}^1$

素因数の和:5204

約数の個数: 48

約数和(自身を含む): 876960000

約数和(自身を除く): 479139580

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 173, 230, 346, 460, 692, 865, 1730, 3460, 3979, 4999, 7958, 9998, 15916, 19895, 19996, 24995, 39790, 49990, 79580, 99980, 114977, 229954, 459908, 574885, 864827, 1149770, 1729654, 2299540, 3459308, 4324135, 8648270, 17296540, 19891021, 39782042, 79564084, 99455105, 198910210, 397820420]

約数ペア:

[(1, 397820420), (2, 198910210), (4, 99455105), (5, 79564084), (10, 39782042), (20, 19891021), (23, 17296540), (46, 8648270), (92, 4324135), (115, 3459308), (173, 2299540), (230, 1729654), (346, 1149770), (460, 864827), (692, 574885), (865, 459908), (1730, 229954), (3460, 114977), (3979, 99980), (4999, 79580), (7958, 49990), (9998, 39790), (15916, 24995), (19895, 19996)]