19831980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2053}}^1$

素因数の和:2095

約数の個数: 96

約数和(自身を含む): 66253824

約数和(自身を除く): 46421844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2053, 2415, 3220, 4106, 4830, 6159, 8212, 9660, 10265, 12318, 14371, 20530, 24636, 28742, 30795, 41060, 43113, 47219, 57484, 61590, 71855, 86226, 94438, 123180, 141657, 143710, 172452, 188876, 215565, 236095, 283314, 287420, 330533, 431130, 472190, 566628, 661066, 708285, 862260, 944380, 991599, 1322132, 1416570, 1652665, 1983198, 2833140, 3305330, 3966396, 4957995, 6610660, 9915990, 19831980]

約数ペア:

[(1, 19831980), (2, 9915990), (3, 6610660), (4, 4957995), (5, 3966396), (6, 3305330), (7, 2833140), (10, 1983198), (12, 1652665), (14, 1416570), (15, 1322132), (20, 991599), (21, 944380), (23, 862260), (28, 708285), (30, 661066), (35, 566628), (42, 472190), (46, 431130), (60, 330533), (69, 287420), (70, 283314), (84, 236095), (92, 215565), (105, 188876), (115, 172452), (138, 143710), (140, 141657), (161, 123180), (210, 94438), (230, 86226), (276, 71855), (322, 61590), (345, 57484), (420, 47219), (460, 43113), (483, 41060), (644, 30795), (690, 28742), (805, 24636), (966, 20530), (1380, 14371), (1610, 12318), (1932, 10265), (2053, 9660), (2415, 8212), (3220, 6159), (4106, 4830)]