78345280

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1$

素因数の和:576

約数の個数: 112

約数和(自身を含む): 206745840

約数和(自身を除く): 128400560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 130, 148, 160, 185, 208, 260, 296, 320, 370, 416, 481, 509, 520, 592, 740, 832, 962, 1018, 1040, 1184, 1480, 1924, 2036, 2080, 2368, 2405, 2545, 2960, 3848, 4072, 4160, 4810, 5090, 5920, 6617, 7696, 8144, 9620, 10180, 11840, 13234, 15392, 16288, 18833, 19240, 20360, 26468, 30784, 32576, 33085, 37666, 38480, 40720, 52936, 66170, 75332, 76960, 81440, 94165, 105872, 132340, 150664, 153920, 162880, 188330, 211744, 244829, 264680, 301328, 376660, 423488, 489658, 529360, 602656, 753320, 979316, 1058720, 1205312, 1224145, 1506640, 1958632, 2117440, 2448290, 3013280, 3917264, 4896580, 6026560, 7834528, 9793160, 15669056, 19586320, 39172640, 78345280]

約数ペア:

[(1, 78345280), (2, 39172640), (4, 19586320), (5, 15669056), (8, 9793160), (10, 7834528), (13, 6026560), (16, 4896580), (20, 3917264), (26, 3013280), (32, 2448290), (37, 2117440), (40, 1958632), (52, 1506640), (64, 1224145), (65, 1205312), (74, 1058720), (80, 979316), (104, 753320), (130, 602656), (148, 529360), (160, 489658), (185, 423488), (208, 376660), (260, 301328), (296, 264680), (320, 244829), (370, 211744), (416, 188330), (481, 162880), (509, 153920), (520, 150664), (592, 132340), (740, 105872), (832, 94165), (962, 81440), (1018, 76960), (1040, 75332), (1184, 66170), (1480, 52936), (1924, 40720), (2036, 38480), (2080, 37666), (2368, 33085), (2405, 32576), (2545, 30784), (2960, 26468), (3848, 20360), (4072, 19240), (4160, 18833), (4810, 16288), (5090, 15392), (5920, 13234), (6617, 11840), (7696, 10180), (8144, 9620)]