81900240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:477

約数の個数: 160

約数和(自身を含む): 272768256

約数和(自身を除く): 190868016

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 37, 40, 46, 48, 60, 69, 74, 80, 92, 111, 115, 120, 138, 148, 184, 185, 222, 230, 240, 276, 296, 345, 368, 370, 401, 444, 460, 552, 555, 592, 690, 740, 802, 851, 888, 920, 1104, 1110, 1203, 1380, 1480, 1604, 1702, 1776, 1840, 2005, 2220, 2406, 2553, 2760, 2960, 3208, 3404, 4010, 4255, 4440, 4812, 5106, 5520, 6015, 6416, 6808, 8020, 8510, 8880, 9223, 9624, 10212, 12030, 12765, 13616, 14837, 16040, 17020, 18446, 19248, 20424, 24060, 25530, 27669, 29674, 32080, 34040, 36892, 40848, 44511, 46115, 48120, 51060, 55338, 59348, 68080, 73784, 74185, 89022, 92230, 96240, 102120, 110676, 118696, 138345, 147568, 148370, 178044, 184460, 204240, 221352, 222555, 237392, 276690, 296740, 341251, 356088, 368920, 442704, 445110, 553380, 593480, 682502, 712176, 737840, 890220, 1023753, 1106760, 1186960, 1365004, 1706255, 1780440, 2047506, 2213520, 2730008, 3412510, 3560880, 4095012, 5118765, 5460016, 6825020, 8190024, 10237530, 13650040, 16380048, 20475060, 27300080, 40950120, 81900240]

約数ペア:

[(1, 81900240), (2, 40950120), (3, 27300080), (4, 20475060), (5, 16380048), (6, 13650040), (8, 10237530), (10, 8190024), (12, 6825020), (15, 5460016), (16, 5118765), (20, 4095012), (23, 3560880), (24, 3412510), (30, 2730008), (37, 2213520), (40, 2047506), (46, 1780440), (48, 1706255), (60, 1365004), (69, 1186960), (74, 1106760), (80, 1023753), (92, 890220), (111, 737840), (115, 712176), (120, 682502), (138, 593480), (148, 553380), (184, 445110), (185, 442704), (222, 368920), (230, 356088), (240, 341251), (276, 296740), (296, 276690), (345, 237392), (368, 222555), (370, 221352), (401, 204240), (444, 184460), (460, 178044), (552, 148370), (555, 147568), (592, 138345), (690, 118696), (740, 110676), (802, 102120), (851, 96240), (888, 92230), (920, 89022), (1104, 74185), (1110, 73784), (1203, 68080), (1380, 59348), (1480, 55338), (1604, 51060), (1702, 48120), (1776, 46115), (1840, 44511), (2005, 40848), (2220, 36892), (2406, 34040), (2553, 32080), (2760, 29674), (2960, 27669), (3208, 25530), (3404, 24060), (4010, 20424), (4255, 19248), (4440, 18446), (4812, 17020), (5106, 16040), (5520, 14837), (6015, 13616), (6416, 12765), (6808, 12030), (8020, 10212), (8510, 9624), (8880, 9223)]