128538214

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 241827840

約数和(自身を除く): 113289626

約数列:

[1, 2, 7, 14, 23, 31, 46, 62, 79, 158, 161, 163, 217, 322, 326, 434, 553, 713, 1106, 1141, 1426, 1817, 2282, 2449, 3634, 3749, 4898, 4991, 5053, 7498, 9982, 10106, 12719, 12877, 17143, 25438, 25754, 26243, 34286, 35371, 52486, 56327, 70742, 90139, 112654, 116219, 180278, 232438, 296171, 394289, 399187, 592342, 788578, 798374, 813533, 1627066, 2073197, 2794309, 4146394, 5588618, 9181301, 18362602, 64269107, 128538214]

約数ペア:

[(1, 128538214), (2, 64269107), (7, 18362602), (14, 9181301), (23, 5588618), (31, 4146394), (46, 2794309), (62, 2073197), (79, 1627066), (158, 813533), (161, 798374), (163, 788578), (217, 592342), (322, 399187), (326, 394289), (434, 296171), (553, 232438), (713, 180278), (1106, 116219), (1141, 112654), (1426, 90139), (1817, 70742), (2282, 56327), (2449, 52486), (3634, 35371), (3749, 34286), (4898, 26243), (4991, 25754), (5053, 25438), (7498, 17143), (9982, 12877), (10106, 12719)]