20433420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16217}}^1$

素因数の和:16239

約数の個数: 72

約数和(自身を含む): 70840224

約数和(自身を除く): 50406804

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, 16217, 32434, 48651, 64868, 81085, 97302, 113519, 145953, 162170, 194604, 227038, 243255, 291906, 324340, 340557, 454076, 486510, 567595, 583812, 681114, 729765, 973020, 1021671, 1135190, 1362228, 1459530, 1702785, 2043342, 2270380, 2919060, 3405570, 4086684, 5108355, 6811140, 10216710, 20433420]

約数ペア:

[(1, 20433420), (2, 10216710), (3, 6811140), (4, 5108355), (5, 4086684), (6, 3405570), (7, 2919060), (9, 2270380), (10, 2043342), (12, 1702785), (14, 1459530), (15, 1362228), (18, 1135190), (20, 1021671), (21, 973020), (28, 729765), (30, 681114), (35, 583812), (36, 567595), (42, 486510), (45, 454076), (60, 340557), (63, 324340), (70, 291906), (84, 243255), (90, 227038), (105, 194604), (126, 162170), (140, 145953), (180, 113519), (210, 97302), (252, 81085), (315, 64868), (420, 48651), (630, 32434), (1260, 16217)]