20050380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15913}}^1$

素因数の和:15935

約数の個数: 72

約数和(自身を含む): 69512352

約数和(自身を除く): 49461972

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, 15913, 31826, 47739, 63652, 79565, 95478, 111391, 143217, 159130, 190956, 222782, 238695, 286434, 318260, 334173, 445564, 477390, 556955, 572868, 668346, 716085, 954780, 1002519, 1113910, 1336692, 1432170, 1670865, 2005038, 2227820, 2864340, 3341730, 4010076, 5012595, 6683460, 10025190, 20050380]

約数ペア:

[(1, 20050380), (2, 10025190), (3, 6683460), (4, 5012595), (5, 4010076), (6, 3341730), (7, 2864340), (9, 2227820), (10, 2005038), (12, 1670865), (14, 1432170), (15, 1336692), (18, 1113910), (20, 1002519), (21, 954780), (28, 716085), (30, 668346), (35, 572868), (36, 556955), (42, 477390), (45, 445564), (60, 334173), (63, 318260), (70, 286434), (84, 238695), (90, 222782), (105, 190956), (126, 159130), (140, 143217), (180, 111391), (210, 95478), (252, 79565), (315, 63652), (420, 47739), (630, 31826), (1260, 15913)]