87785985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 171417600

約数和(自身を除く): 83631615

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 79, 95, 105, 133, 237, 285, 395, 399, 553, 557, 665, 1185, 1501, 1659, 1671, 1995, 2765, 2785, 3899, 4503, 7505, 8295, 8355, 10507, 10583, 11697, 19495, 22515, 31521, 31749, 44003, 52535, 52915, 58485, 74081, 132009, 157605, 158745, 220015, 222243, 308021, 370405, 660045, 836057, 924063, 1111215, 1540105, 2508171, 4180285, 4620315, 5852399, 12540855, 17557197, 29261995, 87785985]

約数ペア:

[(1, 87785985), (3, 29261995), (5, 17557197), (7, 12540855), (15, 5852399), (19, 4620315), (21, 4180285), (35, 2508171), (57, 1540105), (79, 1111215), (95, 924063), (105, 836057), (133, 660045), (237, 370405), (285, 308021), (395, 222243), (399, 220015), (553, 158745), (557, 157605), (665, 132009), (1185, 74081), (1501, 58485), (1659, 52915), (1671, 52535), (1995, 44003), (2765, 31749), (2785, 31521), (3899, 22515), (4503, 19495), (7505, 11697), (8295, 10583), (8355, 10507)]