213310980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{16691}}^1$

素因数の和:16777

約数の個数: 72

約数和(自身を含む): 656195904

約数和(自身を除く): 442884924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 16691, 33382, 50073, 66764, 83455, 100146, 150219, 166910, 200292, 250365, 300438, 333820, 500730, 600876, 751095, 1001460, 1185061, 1502190, 2370122, 3004380, 3555183, 4740244, 5925305, 7110366, 10665549, 11850610, 14220732, 17775915, 21331098, 23701220, 35551830, 42662196, 53327745, 71103660, 106655490, 213310980]

約数ペア:

[(1, 213310980), (2, 106655490), (3, 71103660), (4, 53327745), (5, 42662196), (6, 35551830), (9, 23701220), (10, 21331098), (12, 17775915), (15, 14220732), (18, 11850610), (20, 10665549), (30, 7110366), (36, 5925305), (45, 4740244), (60, 3555183), (71, 3004380), (90, 2370122), (142, 1502190), (180, 1185061), (213, 1001460), (284, 751095), (355, 600876), (426, 500730), (639, 333820), (710, 300438), (852, 250365), (1065, 200292), (1278, 166910), (1420, 150219), (2130, 100146), (2556, 83455), (3195, 66764), (4260, 50073), (6390, 33382), (12780, 16691)]