130312760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 302702400

約数和(自身を除く): 172389640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 181, 205, 328, 362, 410, 439, 724, 820, 878, 905, 1448, 1640, 1756, 1810, 2195, 3512, 3620, 4390, 7240, 7421, 8780, 14842, 17560, 17999, 29684, 35998, 37105, 59368, 71996, 74210, 79459, 89995, 143992, 148420, 158918, 179990, 296840, 317836, 359980, 397295, 635672, 719960, 794590, 1589180, 3178360, 3257819, 6515638, 13031276, 16289095, 26062552, 32578190, 65156380, 130312760]

約数ペア:

[(1, 130312760), (2, 65156380), (4, 32578190), (5, 26062552), (8, 16289095), (10, 13031276), (20, 6515638), (40, 3257819), (41, 3178360), (82, 1589180), (164, 794590), (181, 719960), (205, 635672), (328, 397295), (362, 359980), (410, 317836), (439, 296840), (724, 179990), (820, 158918), (878, 148420), (905, 143992), (1448, 89995), (1640, 79459), (1756, 74210), (1810, 71996), (2195, 59368), (3512, 37105), (3620, 35998), (4390, 29684), (7240, 17999), (7421, 17560), (8780, 14842)]