204022980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{161923}}^1$

素因数の和:161945

約数の個数: 72

約数和(自身を含む): 707284032

約数和(自身を除く): 503261052

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, 161923, 323846, 485769, 647692, 809615, 971538, 1133461, 1457307, 1619230, 1943076, 2266922, 2428845, 2914614, 3238460, 3400383, 4533844, 4857690, 5667305, 5829228, 6800766, 7286535, 9715380, 10201149, 11334610, 13601532, 14573070, 17001915, 20402298, 22669220, 29146140, 34003830, 40804596, 51005745, 68007660, 102011490, 204022980]

約数ペア:

[(1, 204022980), (2, 102011490), (3, 68007660), (4, 51005745), (5, 40804596), (6, 34003830), (7, 29146140), (9, 22669220), (10, 20402298), (12, 17001915), (14, 14573070), (15, 13601532), (18, 11334610), (20, 10201149), (21, 9715380), (28, 7286535), (30, 6800766), (35, 5829228), (36, 5667305), (42, 4857690), (45, 4533844), (60, 3400383), (63, 3238460), (70, 2914614), (84, 2428845), (90, 2266922), (105, 1943076), (126, 1619230), (140, 1457307), (180, 1133461), (210, 971538), (252, 809615), (315, 647692), (420, 485769), (630, 323846), (1260, 161923)]