217879935

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:349

約数の個数: 128

約数和(自身を含む): 467927040

約数和(自身を除く): 250047105

約数列:

[1, 3, 5, 7, 13, 15, 19, 21, 31, 35, 39, 57, 65, 91, 93, 95, 105, 133, 155, 195, 217, 247, 271, 273, 285, 399, 403, 455, 465, 589, 651, 665, 741, 813, 1085, 1209, 1235, 1355, 1365, 1729, 1767, 1897, 1995, 2015, 2821, 2945, 3255, 3523, 3705, 4065, 4123, 5149, 5187, 5691, 6045, 7657, 8401, 8463, 8645, 8835, 9485, 10569, 12369, 14105, 15447, 17615, 20615, 22971, 24661, 25203, 25745, 25935, 28455, 36043, 38285, 42005, 42315, 52845, 53599, 58807, 61845, 66937, 73983, 77235, 108129, 109213, 114855, 123305, 126015, 159619, 160797, 176421, 180215, 200811, 267995, 294035, 327639, 334685, 369915, 468559, 478857, 540645, 546065, 764491, 798095, 803985, 882105, 1004055, 1117333, 1405677, 1638195, 2075047, 2293473, 2342795, 2394285, 3351999, 3822455, 5586665, 6225141, 7028385, 10375235, 11467365, 14525329, 16759995, 31125705, 43575987, 72626645, 217879935]

約数ペア:

[(1, 217879935), (3, 72626645), (5, 43575987), (7, 31125705), (13, 16759995), (15, 14525329), (19, 11467365), (21, 10375235), (31, 7028385), (35, 6225141), (39, 5586665), (57, 3822455), (65, 3351999), (91, 2394285), (93, 2342795), (95, 2293473), (105, 2075047), (133, 1638195), (155, 1405677), (195, 1117333), (217, 1004055), (247, 882105), (271, 803985), (273, 798095), (285, 764491), (399, 546065), (403, 540645), (455, 478857), (465, 468559), (589, 369915), (651, 334685), (665, 327639), (741, 294035), (813, 267995), (1085, 200811), (1209, 180215), (1235, 176421), (1355, 160797), (1365, 159619), (1729, 126015), (1767, 123305), (1897, 114855), (1995, 109213), (2015, 108129), (2821, 77235), (2945, 73983), (3255, 66937), (3523, 61845), (3705, 58807), (4065, 53599), (4123, 52845), (5149, 42315), (5187, 42005), (5691, 38285), (6045, 36043), (7657, 28455), (8401, 25935), (8463, 25745), (8645, 25203), (8835, 24661), (9485, 22971), (10569, 20615), (12369, 17615), (14105, 15447)]