20570850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2689}}^1$

素因数の和:2724

約数の個数: 72

約数和(自身を含む): 58539780

約数和(自身を除く): 37968930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 25, 30, 34, 45, 50, 51, 75, 85, 90, 102, 150, 153, 170, 225, 255, 306, 425, 450, 510, 765, 850, 1275, 1530, 2550, 2689, 3825, 5378, 7650, 8067, 13445, 16134, 24201, 26890, 40335, 45713, 48402, 67225, 80670, 91426, 121005, 134450, 137139, 201675, 228565, 242010, 274278, 403350, 411417, 457130, 605025, 685695, 822834, 1142825, 1210050, 1371390, 2057085, 2285650, 3428475, 4114170, 6856950, 10285425, 20570850]

約数ペア:

[(1, 20570850), (2, 10285425), (3, 6856950), (5, 4114170), (6, 3428475), (9, 2285650), (10, 2057085), (15, 1371390), (17, 1210050), (18, 1142825), (25, 822834), (30, 685695), (34, 605025), (45, 457130), (50, 411417), (51, 403350), (75, 274278), (85, 242010), (90, 228565), (102, 201675), (150, 137139), (153, 134450), (170, 121005), (225, 91426), (255, 80670), (306, 67225), (425, 48402), (450, 45713), (510, 40335), (765, 26890), (850, 24201), (1275, 16134), (1530, 13445), (2550, 8067), (2689, 7650), (3825, 5378)]