19789792

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:320

約数の個数: 72

約数和(自身を含む): 45246600

約数和(自身を除く): 25456808

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 121, 152, 176, 209, 242, 269, 304, 352, 418, 484, 538, 608, 836, 968, 1076, 1672, 1936, 2152, 2299, 2959, 3344, 3872, 4304, 4598, 5111, 5918, 6688, 8608, 9196, 10222, 11836, 18392, 20444, 23672, 32549, 36784, 40888, 47344, 56221, 65098, 73568, 81776, 94688, 112442, 130196, 163552, 224884, 260392, 449768, 520784, 618431, 899536, 1041568, 1236862, 1799072, 2473724, 4947448, 9894896, 19789792]

約数ペア:

[(1, 19789792), (2, 9894896), (4, 4947448), (8, 2473724), (11, 1799072), (16, 1236862), (19, 1041568), (22, 899536), (32, 618431), (38, 520784), (44, 449768), (76, 260392), (88, 224884), (121, 163552), (152, 130196), (176, 112442), (209, 94688), (242, 81776), (269, 73568), (304, 65098), (352, 56221), (418, 47344), (484, 40888), (538, 36784), (608, 32549), (836, 23672), (968, 20444), (1076, 18392), (1672, 11836), (1936, 10222), (2152, 9196), (2299, 8608), (2959, 6688), (3344, 5918), (3872, 5111), (4304, 4598)]