89807900

素因数分解:

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

素因数の和:244

約数の個数: 144

約数和(自身を含む): 244984320

約数和(自身を除く): 155176420

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 71, 91, 100, 130, 139, 140, 142, 175, 182, 260, 278, 284, 325, 350, 355, 364, 455, 497, 556, 650, 695, 700, 710, 910, 923, 973, 994, 1300, 1390, 1420, 1775, 1807, 1820, 1846, 1946, 1988, 2275, 2485, 2780, 3475, 3550, 3614, 3692, 3892, 4550, 4615, 4865, 4970, 6461, 6950, 7100, 7228, 9035, 9100, 9230, 9730, 9869, 9940, 12425, 12649, 12922, 13900, 18070, 18460, 19460, 19738, 23075, 24325, 24850, 25298, 25844, 32305, 36140, 39476, 45175, 46150, 48650, 49345, 49700, 50596, 63245, 64610, 69083, 90350, 92300, 97300, 98690, 126490, 128297, 129220, 138166, 161525, 180700, 197380, 246725, 252980, 256594, 276332, 316225, 323050, 345415, 493450, 513188, 632450, 641485, 646100, 690830, 898079, 986900, 1264900, 1282970, 1381660, 1727075, 1796158, 2565940, 3207425, 3454150, 3592316, 4490395, 6414850, 6908300, 8980790, 12829700, 17961580, 22451975, 44903950, 89807900]

約数ペア:

[(1, 89807900), (2, 44903950), (4, 22451975), (5, 17961580), (7, 12829700), (10, 8980790), (13, 6908300), (14, 6414850), (20, 4490395), (25, 3592316), (26, 3454150), (28, 3207425), (35, 2565940), (50, 1796158), (52, 1727075), (65, 1381660), (70, 1282970), (71, 1264900), (91, 986900), (100, 898079), (130, 690830), (139, 646100), (140, 641485), (142, 632450), (175, 513188), (182, 493450), (260, 345415), (278, 323050), (284, 316225), (325, 276332), (350, 256594), (355, 252980), (364, 246725), (455, 197380), (497, 180700), (556, 161525), (650, 138166), (695, 129220), (700, 128297), (710, 126490), (910, 98690), (923, 97300), (973, 92300), (994, 90350), (1300, 69083), (1390, 64610), (1420, 63245), (1775, 50596), (1807, 49700), (1820, 49345), (1846, 48650), (1946, 46150), (1988, 45175), (2275, 39476), (2485, 36140), (2780, 32305), (3475, 25844), (3550, 25298), (3614, 24850), (3692, 24325), (3892, 23075), (4550, 19738), (4615, 19460), (4865, 18460), (4970, 18070), (6461, 13900), (6950, 12922), (7100, 12649), (7228, 12425), (9035, 9940), (9100, 9869), (9230, 9730)]