27938480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20543}}^1$

素因数の和:20573

約数の個数: 40

約数和(自身を含む): 68781312

約数和(自身を除く): 40842832

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20543, 41086, 82172, 102715, 164344, 205430, 328688, 349231, 410860, 698462, 821720, 1396924, 1643440, 1746155, 2793848, 3492310, 5587696, 6984620, 13969240, 27938480]

約数ペア:

[(1, 27938480), (2, 13969240), (4, 6984620), (5, 5587696), (8, 3492310), (10, 2793848), (16, 1746155), (17, 1643440), (20, 1396924), (34, 821720), (40, 698462), (68, 410860), (80, 349231), (85, 328688), (136, 205430), (170, 164344), (272, 102715), (340, 82172), (680, 41086), (1360, 20543)]