308917980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{245173}}^1$

素因数の和:245195

約数の個数: 72

約数和(自身を含む): 1070920032

約数和(自身を除く): 762002052

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, 245173, 490346, 735519, 980692, 1225865, 1471038, 1716211, 2206557, 2451730, 2942076, 3432422, 3677595, 4413114, 4903460, 5148633, 6864844, 7355190, 8581055, 8826228, 10297266, 11032785, 14710380, 15445899, 17162110, 20594532, 22065570, 25743165, 30891798, 34324220, 44131140, 51486330, 61783596, 77229495, 102972660, 154458990, 308917980]

約数ペア:

[(1, 308917980), (2, 154458990), (3, 102972660), (4, 77229495), (5, 61783596), (6, 51486330), (7, 44131140), (9, 34324220), (10, 30891798), (12, 25743165), (14, 22065570), (15, 20594532), (18, 17162110), (20, 15445899), (21, 14710380), (28, 11032785), (30, 10297266), (35, 8826228), (36, 8581055), (42, 7355190), (45, 6864844), (60, 5148633), (63, 4903460), (70, 4413114), (84, 3677595), (90, 3432422), (105, 2942076), (126, 2451730), (140, 2206557), (180, 1716211), (210, 1471038), (252, 1225865), (315, 980692), (420, 735519), (630, 490346), (1260, 245173)]