387465280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:468

約数の個数: 112

約数和(自身を含む): 962680320

約数和(自身を除く): 575215040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 139, 155, 160, 248, 278, 281, 310, 320, 496, 556, 562, 620, 695, 992, 1112, 1124, 1240, 1390, 1405, 1984, 2224, 2248, 2480, 2780, 2810, 4309, 4448, 4496, 4960, 5560, 5620, 8618, 8711, 8896, 8992, 9920, 11120, 11240, 17236, 17422, 17984, 21545, 22240, 22480, 34472, 34844, 39059, 43090, 43555, 44480, 44960, 68944, 69688, 78118, 86180, 87110, 89920, 137888, 139376, 156236, 172360, 174220, 195295, 275776, 278752, 312472, 344720, 348440, 390590, 557504, 624944, 689440, 696880, 781180, 1210829, 1249888, 1378880, 1393760, 1562360, 2421658, 2499776, 2787520, 3124720, 4843316, 6054145, 6249440, 9686632, 12108290, 12498880, 19373264, 24216580, 38746528, 48433160, 77493056, 96866320, 193732640, 387465280]

約数ペア:

[(1, 387465280), (2, 193732640), (4, 96866320), (5, 77493056), (8, 48433160), (10, 38746528), (16, 24216580), (20, 19373264), (31, 12498880), (32, 12108290), (40, 9686632), (62, 6249440), (64, 6054145), (80, 4843316), (124, 3124720), (139, 2787520), (155, 2499776), (160, 2421658), (248, 1562360), (278, 1393760), (281, 1378880), (310, 1249888), (320, 1210829), (496, 781180), (556, 696880), (562, 689440), (620, 624944), (695, 557504), (992, 390590), (1112, 348440), (1124, 344720), (1240, 312472), (1390, 278752), (1405, 275776), (1984, 195295), (2224, 174220), (2248, 172360), (2480, 156236), (2780, 139376), (2810, 137888), (4309, 89920), (4448, 87110), (4496, 86180), (4960, 78118), (5560, 69688), (5620, 68944), (8618, 44960), (8711, 44480), (8896, 43555), (8992, 43090), (9920, 39059), (11120, 34844), (11240, 34472), (17236, 22480), (17422, 22240), (17984, 21545)]