20558160

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4079}}^1$

素因数の和:4105

約数の個数: 120

約数和(自身を含む): 78923520

約数和(自身を除く): 58365360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 4079, 5040, 8158, 12237, 16316, 20395, 24474, 28553, 32632, 36711, 40790, 48948, 57106, 61185, 65264, 73422, 81580, 85659, 97896, 114212, 122370, 142765, 146844, 163160, 171318, 183555, 195792, 228424, 244740, 256977, 285530, 293688, 326320, 342636, 367110, 428295, 456848, 489480, 513954, 571060, 587376, 685272, 734220, 856590, 978960, 1027908, 1142120, 1284885, 1370544, 1468440, 1713180, 2055816, 2284240, 2569770, 2936880, 3426360, 4111632, 5139540, 6852720, 10279080, 20558160]

約数ペア:

[(1, 20558160), (2, 10279080), (3, 6852720), (4, 5139540), (5, 4111632), (6, 3426360), (7, 2936880), (8, 2569770), (9, 2284240), (10, 2055816), (12, 1713180), (14, 1468440), (15, 1370544), (16, 1284885), (18, 1142120), (20, 1027908), (21, 978960), (24, 856590), (28, 734220), (30, 685272), (35, 587376), (36, 571060), (40, 513954), (42, 489480), (45, 456848), (48, 428295), (56, 367110), (60, 342636), (63, 326320), (70, 293688), (72, 285530), (80, 256977), (84, 244740), (90, 228424), (105, 195792), (112, 183555), (120, 171318), (126, 163160), (140, 146844), (144, 142765), (168, 122370), (180, 114212), (210, 97896), (240, 85659), (252, 81580), (280, 73422), (315, 65264), (336, 61185), (360, 57106), (420, 48948), (504, 40790), (560, 36711), (630, 32632), (720, 28553), (840, 24474), (1008, 20395), (1260, 16316), (1680, 12237), (2520, 8158), (4079, 5040)]