81020100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{941}}^1$

素因数の和:1006

約数の個数: 144

約数和(自身を含む): 274732416

約数和(自身を除く): 193712316

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 41, 42, 50, 60, 70, 75, 82, 84, 100, 105, 123, 140, 150, 164, 175, 205, 210, 246, 287, 300, 350, 410, 420, 492, 525, 574, 615, 700, 820, 861, 941, 1025, 1050, 1148, 1230, 1435, 1722, 1882, 2050, 2100, 2460, 2823, 2870, 3075, 3444, 3764, 4100, 4305, 4705, 5646, 5740, 6150, 6587, 7175, 8610, 9410, 11292, 12300, 13174, 14115, 14350, 17220, 18820, 19761, 21525, 23525, 26348, 28230, 28700, 32935, 38581, 39522, 43050, 47050, 56460, 65870, 70575, 77162, 79044, 86100, 94100, 98805, 115743, 131740, 141150, 154324, 164675, 192905, 197610, 231486, 270067, 282300, 329350, 385810, 395220, 462972, 494025, 540134, 578715, 658700, 771620, 810201, 964525, 988050, 1080268, 1157430, 1350335, 1620402, 1929050, 1976100, 2314860, 2700670, 2893575, 3240804, 3858100, 4051005, 5401340, 5787150, 6751675, 8102010, 11574300, 13503350, 16204020, 20255025, 27006700, 40510050, 81020100]

約数ペア:

[(1, 81020100), (2, 40510050), (3, 27006700), (4, 20255025), (5, 16204020), (6, 13503350), (7, 11574300), (10, 8102010), (12, 6751675), (14, 5787150), (15, 5401340), (20, 4051005), (21, 3858100), (25, 3240804), (28, 2893575), (30, 2700670), (35, 2314860), (41, 1976100), (42, 1929050), (50, 1620402), (60, 1350335), (70, 1157430), (75, 1080268), (82, 988050), (84, 964525), (100, 810201), (105, 771620), (123, 658700), (140, 578715), (150, 540134), (164, 494025), (175, 462972), (205, 395220), (210, 385810), (246, 329350), (287, 282300), (300, 270067), (350, 231486), (410, 197610), (420, 192905), (492, 164675), (525, 154324), (574, 141150), (615, 131740), (700, 115743), (820, 98805), (861, 94100), (941, 86100), (1025, 79044), (1050, 77162), (1148, 70575), (1230, 65870), (1435, 56460), (1722, 47050), (1882, 43050), (2050, 39522), (2100, 38581), (2460, 32935), (2823, 28700), (2870, 28230), (3075, 26348), (3444, 23525), (3764, 21525), (4100, 19761), (4305, 18820), (4705, 17220), (5646, 14350), (5740, 14115), (6150, 13174), (6587, 12300), (7175, 11292), (8610, 9410)]