217691880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{259157}}^1$

素因数の和:259178

約数の個数: 64

約数和(自身を含む): 746375040

約数和(自身を除く): 528683160

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, 259157, 518314, 777471, 1036628, 1295785, 1554942, 1814099, 2073256, 2591570, 3109884, 3628198, 3887355, 5183140, 5442297, 6219768, 7256396, 7774710, 9070495, 10366280, 10884594, 14512792, 15549420, 18140990, 21769188, 27211485, 31098840, 36281980, 43538376, 54422970, 72563960, 108845940, 217691880]

約数ペア:

[(1, 217691880), (2, 108845940), (3, 72563960), (4, 54422970), (5, 43538376), (6, 36281980), (7, 31098840), (8, 27211485), (10, 21769188), (12, 18140990), (14, 15549420), (15, 14512792), (20, 10884594), (21, 10366280), (24, 9070495), (28, 7774710), (30, 7256396), (35, 6219768), (40, 5442297), (42, 5183140), (56, 3887355), (60, 3628198), (70, 3109884), (84, 2591570), (105, 2073256), (120, 1814099), (140, 1554942), (168, 1295785), (210, 1036628), (280, 777471), (420, 518314), (840, 259157)]