78624680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:594

約数の個数: 64

約数和(自身を含む): 184204800

約数和(自身を除く): 105580120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 163, 248, 310, 326, 389, 620, 652, 778, 815, 1240, 1304, 1556, 1630, 1945, 3112, 3260, 3890, 5053, 6520, 7780, 10106, 12059, 15560, 20212, 24118, 25265, 40424, 48236, 50530, 60295, 63407, 96472, 101060, 120590, 126814, 202120, 241180, 253628, 317035, 482360, 507256, 634070, 1268140, 1965617, 2536280, 3931234, 7862468, 9828085, 15724936, 19656170, 39312340, 78624680]

約数ペア:

[(1, 78624680), (2, 39312340), (4, 19656170), (5, 15724936), (8, 9828085), (10, 7862468), (20, 3931234), (31, 2536280), (40, 1965617), (62, 1268140), (124, 634070), (155, 507256), (163, 482360), (248, 317035), (310, 253628), (326, 241180), (389, 202120), (620, 126814), (652, 120590), (778, 101060), (815, 96472), (1240, 63407), (1304, 60295), (1556, 50530), (1630, 48236), (1945, 40424), (3112, 25265), (3260, 24118), (3890, 20212), (5053, 15560), (6520, 12059), (7780, 10106)]