81216100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{739}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 202973120

約数和(自身を除く): 121757020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 157, 175, 314, 350, 628, 700, 739, 785, 1099, 1478, 1570, 2198, 2956, 3140, 3695, 3925, 4396, 5173, 5495, 7390, 7850, 10346, 10990, 14780, 15700, 18475, 20692, 21980, 25865, 27475, 36950, 51730, 54950, 73900, 103460, 109900, 116023, 129325, 232046, 258650, 464092, 517300, 580115, 812161, 1160230, 1624322, 2320460, 2900575, 3248644, 4060805, 5801150, 8121610, 11602300, 16243220, 20304025, 40608050, 81216100]

約数ペア:

[(1, 81216100), (2, 40608050), (4, 20304025), (5, 16243220), (7, 11602300), (10, 8121610), (14, 5801150), (20, 4060805), (25, 3248644), (28, 2900575), (35, 2320460), (50, 1624322), (70, 1160230), (100, 812161), (140, 580115), (157, 517300), (175, 464092), (314, 258650), (350, 232046), (628, 129325), (700, 116023), (739, 109900), (785, 103460), (1099, 73900), (1478, 54950), (1570, 51730), (2198, 36950), (2956, 27475), (3140, 25865), (3695, 21980), (3925, 20692), (4396, 18475), (5173, 15700), (5495, 14780), (7390, 10990), (7850, 10346)]