61881820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 176428224

約数和(自身を除く): 114546404

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 121, 130, 140, 143, 154, 182, 220, 242, 260, 281, 286, 308, 364, 385, 455, 484, 562, 572, 605, 715, 770, 847, 910, 1001, 1124, 1210, 1405, 1430, 1540, 1573, 1694, 1820, 1967, 2002, 2420, 2810, 2860, 3091, 3146, 3388, 3653, 3934, 4004, 4235, 5005, 5620, 6182, 6292, 7306, 7865, 7868, 8470, 9835, 10010, 11011, 12364, 14612, 15455, 15730, 16940, 18265, 19670, 20020, 21637, 22022, 25571, 30910, 31460, 34001, 36530, 39340, 40183, 43274, 44044, 51142, 55055, 61820, 68002, 73060, 80366, 86548, 102284, 108185, 110110, 127855, 136004, 160732, 170005, 200915, 216370, 220220, 238007, 255710, 281281, 340010, 401830, 432740, 442013, 476014, 511420, 562562, 680020, 803660, 884026, 952028, 1125124, 1190035, 1406405, 1768052, 2210065, 2380070, 2812810, 3094091, 4420130, 4760140, 5625620, 6188182, 8840260, 12376364, 15470455, 30940910, 61881820]

約数ペア:

[(1, 61881820), (2, 30940910), (4, 15470455), (5, 12376364), (7, 8840260), (10, 6188182), (11, 5625620), (13, 4760140), (14, 4420130), (20, 3094091), (22, 2812810), (26, 2380070), (28, 2210065), (35, 1768052), (44, 1406405), (52, 1190035), (55, 1125124), (65, 952028), (70, 884026), (77, 803660), (91, 680020), (110, 562562), (121, 511420), (130, 476014), (140, 442013), (143, 432740), (154, 401830), (182, 340010), (220, 281281), (242, 255710), (260, 238007), (281, 220220), (286, 216370), (308, 200915), (364, 170005), (385, 160732), (455, 136004), (484, 127855), (562, 110110), (572, 108185), (605, 102284), (715, 86548), (770, 80366), (847, 73060), (910, 68002), (1001, 61820), (1124, 55055), (1210, 51142), (1405, 44044), (1430, 43274), (1540, 40183), (1573, 39340), (1694, 36530), (1820, 34001), (1967, 31460), (2002, 30910), (2420, 25571), (2810, 22022), (2860, 21637), (3091, 20020), (3146, 19670), (3388, 18265), (3653, 16940), (3934, 15730), (4004, 15455), (4235, 14612), (5005, 12364), (5620, 11011), (6182, 10010), (6292, 9835), (7306, 8470), (7865, 7868)]