210818020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{313}}^1$

素因数の和:629

約数の個数: 96

約数和(自身を含む): 539336448

約数和(自身を除く): 328518428

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 283, 313, 340, 476, 566, 595, 626, 1132, 1190, 1252, 1415, 1565, 1981, 2191, 2380, 2830, 3130, 3962, 4382, 4811, 5321, 5660, 6260, 7924, 8764, 9622, 9905, 10642, 10955, 19244, 19810, 21284, 21910, 24055, 26605, 33677, 37247, 39620, 43820, 48110, 53210, 67354, 74494, 88579, 96220, 106420, 134708, 148988, 168385, 177158, 186235, 336770, 354316, 372470, 442895, 620053, 673540, 744940, 885790, 1240106, 1505843, 1771580, 2480212, 3011686, 3100265, 6023372, 6200530, 7529215, 10540901, 12401060, 15058430, 21081802, 30116860, 42163604, 52704505, 105409010, 210818020]

約数ペア:

[(1, 210818020), (2, 105409010), (4, 52704505), (5, 42163604), (7, 30116860), (10, 21081802), (14, 15058430), (17, 12401060), (20, 10540901), (28, 7529215), (34, 6200530), (35, 6023372), (68, 3100265), (70, 3011686), (85, 2480212), (119, 1771580), (140, 1505843), (170, 1240106), (238, 885790), (283, 744940), (313, 673540), (340, 620053), (476, 442895), (566, 372470), (595, 354316), (626, 336770), (1132, 186235), (1190, 177158), (1252, 168385), (1415, 148988), (1565, 134708), (1981, 106420), (2191, 96220), (2380, 88579), (2830, 74494), (3130, 67354), (3962, 53210), (4382, 48110), (4811, 43820), (5321, 39620), (5660, 37247), (6260, 33677), (7924, 26605), (8764, 24055), (9622, 21910), (9905, 21284), (10642, 19810), (10955, 19244)]