65557980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:724

約数の個数: 144

約数和(自身を含む): 216871200

約数和(自身を除く): 151313220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 29, 30, 36, 38, 45, 57, 58, 60, 76, 87, 90, 95, 114, 116, 145, 171, 174, 180, 190, 228, 261, 285, 290, 342, 348, 380, 435, 522, 551, 570, 580, 661, 684, 855, 870, 1044, 1102, 1140, 1305, 1322, 1653, 1710, 1740, 1983, 2204, 2610, 2644, 2755, 3305, 3306, 3420, 3966, 4959, 5220, 5510, 5949, 6610, 6612, 7932, 8265, 9915, 9918, 11020, 11898, 12559, 13220, 16530, 19169, 19830, 19836, 23796, 24795, 25118, 29745, 33060, 37677, 38338, 39660, 49590, 50236, 57507, 59490, 62795, 75354, 76676, 95845, 99180, 113031, 115014, 118980, 125590, 150708, 172521, 188385, 191690, 226062, 230028, 251180, 287535, 345042, 364211, 376770, 383380, 452124, 565155, 575070, 690084, 728422, 753540, 862605, 1092633, 1130310, 1150140, 1456844, 1725210, 1821055, 2185266, 2260620, 3277899, 3450420, 3642110, 4370532, 5463165, 6555798, 7284220, 10926330, 13111596, 16389495, 21852660, 32778990, 65557980]

約数ペア:

[(1, 65557980), (2, 32778990), (3, 21852660), (4, 16389495), (5, 13111596), (6, 10926330), (9, 7284220), (10, 6555798), (12, 5463165), (15, 4370532), (18, 3642110), (19, 3450420), (20, 3277899), (29, 2260620), (30, 2185266), (36, 1821055), (38, 1725210), (45, 1456844), (57, 1150140), (58, 1130310), (60, 1092633), (76, 862605), (87, 753540), (90, 728422), (95, 690084), (114, 575070), (116, 565155), (145, 452124), (171, 383380), (174, 376770), (180, 364211), (190, 345042), (228, 287535), (261, 251180), (285, 230028), (290, 226062), (342, 191690), (348, 188385), (380, 172521), (435, 150708), (522, 125590), (551, 118980), (570, 115014), (580, 113031), (661, 99180), (684, 95845), (855, 76676), (870, 75354), (1044, 62795), (1102, 59490), (1140, 57507), (1305, 50236), (1322, 49590), (1653, 39660), (1710, 38338), (1740, 37677), (1983, 33060), (2204, 29745), (2610, 25118), (2644, 24795), (2755, 23796), (3305, 19836), (3306, 19830), (3420, 19169), (3966, 16530), (4959, 13220), (5220, 12559), (5510, 11898), (5949, 11020), (6610, 9918), (6612, 9915), (7932, 8265)]