20023220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1607}}^1$

素因数の和:1712

約数の個数: 48

約数和(自身を含む): 48625920

約数和(自身を除く): 28602700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1607, 1780, 2492, 3115, 3214, 6230, 6428, 8035, 11249, 12460, 16070, 22498, 32140, 44996, 56245, 112490, 143023, 224980, 286046, 572092, 715115, 1001161, 1430230, 2002322, 2860460, 4004644, 5005805, 10011610, 20023220]

約数ペア:

[(1, 20023220), (2, 10011610), (4, 5005805), (5, 4004644), (7, 2860460), (10, 2002322), (14, 1430230), (20, 1001161), (28, 715115), (35, 572092), (70, 286046), (89, 224980), (140, 143023), (178, 112490), (356, 56245), (445, 44996), (623, 32140), (890, 22498), (1246, 16070), (1607, 12460), (1780, 11249), (2492, 8035), (3115, 6428), (3214, 6230)]