205764980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{4201}}^1$

素因数の和:4320

約数の個数: 48

約数和(自身を含む): 451799040

約数和(自身を除く): 246034060

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1580, 2449, 4201, 4898, 8402, 9796, 12245, 16804, 21005, 24490, 42010, 48980, 84020, 130231, 260462, 331879, 520924, 651155, 663758, 1302310, 1327516, 1659395, 2604620, 3318790, 6637580, 10288249, 20576498, 41152996, 51441245, 102882490, 205764980]

約数ペア:

[(1, 205764980), (2, 102882490), (4, 51441245), (5, 41152996), (10, 20576498), (20, 10288249), (31, 6637580), (62, 3318790), (79, 2604620), (124, 1659395), (155, 1327516), (158, 1302310), (310, 663758), (316, 651155), (395, 520924), (620, 331879), (790, 260462), (1580, 130231), (2449, 84020), (4201, 48980), (4898, 42010), (8402, 24490), (9796, 21005), (12245, 16804)]