20217490968

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{7187}}^1$

素因数の和:7445

約数の個数: 128

約数和(自身を含む): 55203840000

約数和(自身を除く): 34986349032

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 31, 38, 57, 62, 76, 93, 114, 124, 152, 186, 199, 228, 248, 372, 398, 456, 589, 597, 744, 796, 1178, 1194, 1592, 1767, 2356, 2388, 3534, 3781, 4712, 4776, 6169, 7068, 7187, 7562, 11343, 12338, 14136, 14374, 15124, 18507, 21561, 22686, 24676, 28748, 30248, 37014, 43122, 45372, 49352, 57496, 74028, 86244, 90744, 117211, 136553, 148056, 172488, 222797, 234422, 273106, 351633, 409659, 445594, 468844, 546212, 668391, 703266, 819318, 891188, 937688, 1092424, 1336782, 1406532, 1430213, 1638636, 1782376, 2673564, 2813064, 2860426, 3277272, 4233143, 4290639, 5347128, 5720852, 8466286, 8581278, 11441704, 12699429, 16932572, 17162556, 25398858, 27174047, 33865144, 34325112, 44336603, 50797716, 54348094, 81522141, 88673206, 101595432, 108696188, 133009809, 163044282, 177346412, 217392376, 266019618, 326088564, 354692824, 532039236, 652177128, 842395457, 1064078472, 1684790914, 2527186371, 3369581828, 5054372742, 6739163656, 10108745484, 20217490968]

約数ペア:

[(1, 20217490968), (2, 10108745484), (3, 6739163656), (4, 5054372742), (6, 3369581828), (8, 2527186371), (12, 1684790914), (19, 1064078472), (24, 842395457), (31, 652177128), (38, 532039236), (57, 354692824), (62, 326088564), (76, 266019618), (93, 217392376), (114, 177346412), (124, 163044282), (152, 133009809), (186, 108696188), (199, 101595432), (228, 88673206), (248, 81522141), (372, 54348094), (398, 50797716), (456, 44336603), (589, 34325112), (597, 33865144), (744, 27174047), (796, 25398858), (1178, 17162556), (1194, 16932572), (1592, 12699429), (1767, 11441704), (2356, 8581278), (2388, 8466286), (3534, 5720852), (3781, 5347128), (4712, 4290639), (4776, 4233143), (6169, 3277272), (7068, 2860426), (7187, 2813064), (7562, 2673564), (11343, 1782376), (12338, 1638636), (14136, 1430213), (14374, 1406532), (15124, 1336782), (18507, 1092424), (21561, 937688), (22686, 891188), (24676, 819318), (28748, 703266), (30248, 668391), (37014, 546212), (43122, 468844), (45372, 445594), (49352, 409659), (57496, 351633), (74028, 273106), (86244, 234422), (90744, 222797), (117211, 172488), (136553, 148056)]