17961580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 47416320

約数和(自身を除く): 29454740

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 71, 91, 130, 139, 140, 142, 182, 260, 278, 284, 355, 364, 455, 497, 556, 695, 710, 910, 923, 973, 994, 1390, 1420, 1807, 1820, 1846, 1946, 1988, 2485, 2780, 3614, 3692, 3892, 4615, 4865, 4970, 6461, 7228, 9035, 9230, 9730, 9869, 9940, 12649, 12922, 18070, 18460, 19460, 19738, 25298, 25844, 32305, 36140, 39476, 49345, 50596, 63245, 64610, 69083, 98690, 126490, 128297, 129220, 138166, 197380, 252980, 256594, 276332, 345415, 513188, 641485, 690830, 898079, 1282970, 1381660, 1796158, 2565940, 3592316, 4490395, 8980790, 17961580]

約数ペア:

[(1, 17961580), (2, 8980790), (4, 4490395), (5, 3592316), (7, 2565940), (10, 1796158), (13, 1381660), (14, 1282970), (20, 898079), (26, 690830), (28, 641485), (35, 513188), (52, 345415), (65, 276332), (70, 256594), (71, 252980), (91, 197380), (130, 138166), (139, 129220), (140, 128297), (142, 126490), (182, 98690), (260, 69083), (278, 64610), (284, 63245), (355, 50596), (364, 49345), (455, 39476), (497, 36140), (556, 32305), (695, 25844), (710, 25298), (910, 19738), (923, 19460), (973, 18460), (994, 18070), (1390, 12922), (1420, 12649), (1807, 9940), (1820, 9869), (1846, 9730), (1946, 9230), (1988, 9035), (2485, 7228), (2780, 6461), (3614, 4970), (3692, 4865), (3892, 4615)]