381232720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^2$

素因数の和:345

約数の個数: 120

約数和(自身を含む): 1024621920

約数和(自身を除く): 643389200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 151, 152, 176, 190, 209, 220, 302, 304, 380, 418, 440, 604, 755, 760, 836, 880, 1045, 1208, 1510, 1520, 1661, 1672, 2090, 2416, 2869, 3020, 3322, 3344, 4180, 5738, 6040, 6644, 8305, 8360, 11476, 12080, 13288, 14345, 16610, 16720, 22801, 22952, 26576, 28690, 31559, 33220, 45602, 45904, 57380, 63118, 66440, 91204, 114005, 114760, 126236, 132880, 157795, 182408, 228010, 229520, 250811, 252472, 315590, 364816, 433219, 456020, 501622, 504944, 631180, 866438, 912040, 1003244, 1254055, 1262360, 1732876, 1824080, 2006488, 2166095, 2508110, 2524720, 3465752, 4012976, 4332190, 4765409, 5016220, 6931504, 8664380, 9530818, 10032440, 17328760, 19061636, 20064880, 23827045, 34657520, 38123272, 47654090, 76246544, 95308180, 190616360, 381232720]

約数ペア:

[(1, 381232720), (2, 190616360), (4, 95308180), (5, 76246544), (8, 47654090), (10, 38123272), (11, 34657520), (16, 23827045), (19, 20064880), (20, 19061636), (22, 17328760), (38, 10032440), (40, 9530818), (44, 8664380), (55, 6931504), (76, 5016220), (80, 4765409), (88, 4332190), (95, 4012976), (110, 3465752), (151, 2524720), (152, 2508110), (176, 2166095), (190, 2006488), (209, 1824080), (220, 1732876), (302, 1262360), (304, 1254055), (380, 1003244), (418, 912040), (440, 866438), (604, 631180), (755, 504944), (760, 501622), (836, 456020), (880, 433219), (1045, 364816), (1208, 315590), (1510, 252472), (1520, 250811), (1661, 229520), (1672, 228010), (2090, 182408), (2416, 157795), (2869, 132880), (3020, 126236), (3322, 114760), (3344, 114005), (4180, 91204), (5738, 66440), (6040, 63118), (6644, 57380), (8305, 45904), (8360, 45602), (11476, 33220), (12080, 31559), (13288, 28690), (14345, 26576), (16610, 22952), (16720, 22801)]