209891640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249871}}^1$

素因数の和:249892

約数の個数: 64

約数和(自身を含む): 719631360

約数和(自身を除く): 509739720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 249871, 499742, 749613, 999484, 1249355, 1499226, 1749097, 1998968, 2498710, 2998452, 3498194, 3748065, 4997420, 5247291, 5996904, 6996388, 7496130, 8745485, 9994840, 10494582, 13992776, 14992260, 17490970, 20989164, 26236455, 29984520, 34981940, 41978328, 52472910, 69963880, 104945820, 209891640]

約数ペア:

[(1, 209891640), (2, 104945820), (3, 69963880), (4, 52472910), (5, 41978328), (6, 34981940), (7, 29984520), (8, 26236455), (10, 20989164), (12, 17490970), (14, 14992260), (15, 13992776), (20, 10494582), (21, 9994840), (24, 8745485), (28, 7496130), (30, 6996388), (35, 5996904), (40, 5247291), (42, 4997420), (56, 3748065), (60, 3498194), (70, 2998452), (84, 2498710), (105, 1998968), (120, 1749097), (140, 1499226), (168, 1249355), (210, 999484), (280, 749613), (420, 499742), (840, 249871)]