20768016

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:880

約数の個数: 80

約数和(自身を含む): 58710528

約数和(自身を除く): 37942512

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 31, 34, 48, 51, 62, 68, 93, 102, 124, 136, 186, 204, 248, 272, 372, 408, 496, 527, 744, 816, 821, 1054, 1488, 1581, 1642, 2108, 2463, 3162, 3284, 4216, 4926, 6324, 6568, 8432, 9852, 12648, 13136, 13957, 19704, 25296, 25451, 27914, 39408, 41871, 50902, 55828, 76353, 83742, 101804, 111656, 152706, 167484, 203608, 223312, 305412, 334968, 407216, 432667, 610824, 669936, 865334, 1221648, 1298001, 1730668, 2596002, 3461336, 5192004, 6922672, 10384008, 20768016]

約数ペア:

[(1, 20768016), (2, 10384008), (3, 6922672), (4, 5192004), (6, 3461336), (8, 2596002), (12, 1730668), (16, 1298001), (17, 1221648), (24, 865334), (31, 669936), (34, 610824), (48, 432667), (51, 407216), (62, 334968), (68, 305412), (93, 223312), (102, 203608), (124, 167484), (136, 152706), (186, 111656), (204, 101804), (248, 83742), (272, 76353), (372, 55828), (408, 50902), (496, 41871), (527, 39408), (744, 27914), (816, 25451), (821, 25296), (1054, 19704), (1488, 13957), (1581, 13136), (1642, 12648), (2108, 9852), (2463, 8432), (3162, 6568), (3284, 6324), (4216, 4926)]