200020100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3617}}^1$

素因数の和:3717

約数の個数: 72

約数和(自身を含む): 502467840

約数和(自身を除く): 302447740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 79, 100, 140, 158, 175, 316, 350, 395, 553, 700, 790, 1106, 1580, 1975, 2212, 2765, 3617, 3950, 5530, 7234, 7900, 11060, 13825, 14468, 18085, 25319, 27650, 36170, 50638, 55300, 72340, 90425, 101276, 126595, 180850, 253190, 285743, 361700, 506380, 571486, 632975, 1142972, 1265950, 1428715, 2000201, 2531900, 2857430, 4000402, 5714860, 7143575, 8000804, 10001005, 14287150, 20002010, 28574300, 40004020, 50005025, 100010050, 200020100]

約数ペア:

[(1, 200020100), (2, 100010050), (4, 50005025), (5, 40004020), (7, 28574300), (10, 20002010), (14, 14287150), (20, 10001005), (25, 8000804), (28, 7143575), (35, 5714860), (50, 4000402), (70, 2857430), (79, 2531900), (100, 2000201), (140, 1428715), (158, 1265950), (175, 1142972), (316, 632975), (350, 571486), (395, 506380), (553, 361700), (700, 285743), (790, 253190), (1106, 180850), (1580, 126595), (1975, 101276), (2212, 90425), (2765, 72340), (3617, 55300), (3950, 50638), (5530, 36170), (7234, 27650), (7900, 25319), (11060, 18085), (13825, 14468)]