390812940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{310169}}^1$

素因数の和:310191

約数の個数: 72

約数和(自身を含む): 1354822560

約数和(自身を除く): 964009620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 310169, 620338, 930507, 1240676, 1550845, 1861014, 2171183, 2791521, 3101690, 3722028, 4342366, 4652535, 5583042, 6203380, 6513549, 8684732, 9305070, 10855915, 11166084, 13027098, 13957605, 18610140, 19540647, 21711830, 26054196, 27915210, 32567745, 39081294, 43423660, 55830420, 65135490, 78162588, 97703235, 130270980, 195406470, 390812940]

約数ペア:

[(1, 390812940), (2, 195406470), (3, 130270980), (4, 97703235), (5, 78162588), (6, 65135490), (7, 55830420), (9, 43423660), (10, 39081294), (12, 32567745), (14, 27915210), (15, 26054196), (18, 21711830), (20, 19540647), (21, 18610140), (28, 13957605), (30, 13027098), (35, 11166084), (36, 10855915), (42, 9305070), (45, 8684732), (60, 6513549), (63, 6203380), (70, 5583042), (84, 4652535), (90, 4342366), (105, 3722028), (126, 3101690), (140, 2791521), (180, 2171183), (210, 1861014), (252, 1550845), (315, 1240676), (420, 930507), (630, 620338), (1260, 310169)]